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Chemical Structure| 2488-15-5 Chemical Structure| 2488-15-5

Structure of Boc-Met-OH
CAS No.: 2488-15-5

Chemical Structure| 2488-15-5

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Product Details of [ 2488-15-5 ]

CAS No. :2488-15-5
Formula : C10H19NO4S
M.W : 249.33
SMILES Code : O=C(O)[C@@H](NC(OC(C)(C)C)=O)CCSC
MDL No. :MFCD00065586
InChI Key :IMUSLIHRIYOHEV-ZETCQYMHSA-N
Pubchem ID :89857

Safety of [ 2488-15-5 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H319
Precautionary Statements:P305+P351+P338

Computational Chemistry of [ 2488-15-5 ] Show Less

Physicochemical Properties

Num. heavy atoms 16
Num. arom. heavy atoms 0
Fraction Csp3 0.8
Num. rotatable bonds 8
Num. H-bond acceptors 4.0
Num. H-bond donors 2.0
Molar Refractivity 64.06
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

100.93 Ų

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

2.03
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

1.56
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

1.72
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

1.13
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

0.82
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.45

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-1.84
Solubility 3.6 mg/ml ; 0.0144 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Very soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-3.29
Solubility 0.128 mg/ml ; 0.000513 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-1.57
Solubility 6.76 mg/ml ; 0.0271 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

High
BBB permeant?

BBB permeation: according to the yolk of the BOILED-Egg

No
P-gp substrate?

P-glycoprotein substrate: SVM model built on 1033 molecules (training set)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

No
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

No
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

No
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-6.71 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

0.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

0.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.56

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

0.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

No; 1 violation:MW<2.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

3.15

Application In Synthesis of [ 2488-15-5 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 2488-15-5 ]

[ 2488-15-5 ] Synthesis Path-Downstream   1~55

  • 1
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly [ No CAS ]
  • [ 23446-11-9 ]
  • 2
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, 1-<3-(4-hydroxyphenyl)-1-oxopropoxy>-2,5-pyrrolidinedione [ No CAS ]
  • [ 72163-37-2 ]
  • 3
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, 1-<3-<(4-carboxymethyl)phenyl>-1-oxopropoxy>-2,5-pyrrolidinedione [ No CAS ]
  • [ 127153-35-9 ]
  • 4
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, 4-<5-(1,1-dimethylethyl)-2H-tetrazol-5-yl>benzenepropanoic acid [ No CAS ]
  • [ 127153-43-9 ]
  • 5
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, (+/-)-α-(acetylamino)-4-<2-(1,1-dimethylethyl)-2H-tetrazol-5-yl>benzenepropanoic acid [ No CAS ]
  • [ 127153-30-4 ]
  • [ 127153-31-5 ]
  • 6
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, (+/-)-α-(acetylamino)-4-<<2-(1,1-dimethylethyl)-2H-tetrazol-5-yl>methyl>benzenepropanoic acid [ No CAS ]
  • [ 127153-37-1 ]
  • [ 127153-38-2 ]
  • 7
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-Gly-OH, Boc-Tyr(2,6-Cl2-Bzl)-OH, acetic anhydride [ No CAS ]
  • [ 143618-03-5 ]
  • 8
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-β-Ala-OH, Boc-Tyr(2,6-Cl2-Bzl)-OH, acetic anhydride [ No CAS ]
  • [ 143631-74-7 ]
  • 9
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-NHCH2CH2CH2CH2COOH, Boc-Tyr(2,6-Cl2-Bzl)-OH, acetic anhydride [ No CAS ]
  • [ 143618-05-7 ]
  • 10
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-NHCH2CH2CH2COOH, Boc-Tyr(2,6-Cl2-Bzl)-OH, acetic anhydride [ No CAS ]
  • [ 143618-04-6 ]
  • 11
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • Boc-NHCH2CH2CH2CH2CH2COOH, Boc-Tyr(2,6-Cl2-Bzl)-OH, acetic anhydride [ No CAS ]
  • [ 143618-06-8 ]
  • 12
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • [ 131570-56-4 ]
  • t-Boc-Leu-OCH2-phenylacetamidomethyl resin, t-Boc-Asp-(β-OFm)-OH [ No CAS ]
  • (1S,4S,7S,10S,13S,16S)-7-Benzyl-10-(1H-indol-3-ylmethyl)-4-isobutyl-16-(2-methylsulfanyl-ethyl)-2,5,8,11,14,17,20-heptaaza-bicyclo[11.5.4]docosane-3,6,9,12,15,18,21-heptaone [ No CAS ]
  • 13
  • [ 4530-20-5 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 7536-55-2 ]
  • [ 19746-37-3 ]
  • [ 27144-18-9 ]
  • [ 13734-34-4 ]
  • [ 23680-31-1 ]
  • [ 55260-24-7 ]
  • mouse saposin C [ No CAS ]
  • 14
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDERRAKDFVQWLMNT-NH2 [ No CAS ]
  • 15
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDSRRAQDFVQWLMNT-OH [ No CAS ]
  • 16
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2 [ No CAS ]
  • 17
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDSRRAKDFVQWLMNT-NH2 [ No CAS ]
  • 18
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDERRAQDFVQWLMNT-OH [ No CAS ]
  • 19
  • [ 13139-15-6 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDERAAKDFVQWLMNT-NH2 [ No CAS ]
  • 20
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDSRRAQDFVQWLMNTKRNRNNIA-OH [ No CAS ]
  • 21
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HAEGTFTSDVSSYLEERRAQDFVQWLMNT-NH2 [ No CAS ]
  • 22
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDSRRAQDFVQWLMNT-NH2 [ No CAS ]
  • 23
  • [ 4530-20-5 ]
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • HAEGTFTSDLSKQMEEQAAKEFIAWLVKGG-NH2 [ No CAS ]
  • 24
  • [ 4530-20-5 ]
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • HAEGTFTSDLSKQMEEQAAKLFIEWLVKGG-NH2 [ No CAS ]
  • 25
  • [ 4530-20-5 ]
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • HGEGTFTSDLSKQMEEQAAKEFIAWLVKGG-NH2 [ No CAS ]
  • 26
  • [ 4530-20-5 ]
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47355-10-2 ]
  • HGEGTFTSDLSKQMEEQAAKLFIEWLVKGG-NH2 [ No CAS ]
  • 27
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HAQGTFTSDYSKYLDEEAVRLFIEWLMNT-NH2 [ No CAS ]
  • 28
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HGQGTFTSDYSKYLDEEAVRLFIEWLMNT-NH2 [ No CAS ]
  • 29
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDEEAVRLFIEWLMNT-NH2 [ No CAS ]
  • 30
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDEEAVRLFIEWLMNT-NH2; X=Aib [ No CAS ]
  • 31
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDEEAVRLFIEWLMNT-NH2; X=D-Ser [ No CAS ]
  • 32
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 30992-29-1 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2; X=Aib [ No CAS ]
  • 33
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 47173-80-8 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2; X=D-Ser [ No CAS ]
  • 34
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDSRRAQDFVQWLMNT-NH2 [ No CAS ]
  • 35
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2 [ No CAS ]
  • 36
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HAQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2 [ No CAS ]
  • 37
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HGQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2 [ No CAS ]
  • 38
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HAQGTFTSDYSKYLDEEAAKEFIAWLMNT-NH2 [ No CAS ]
  • 39
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HGQGTFTSDYSKYLDEEAAKEFIAWLMNT-NH2 [ No CAS ]
  • 40
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HSQGTFTSDYSKYLDEEAAKEFIAWLMNT-NH2 [ No CAS ]
  • 41
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDEEAAKEFIAWLMNT-NH2; X=Aib [ No CAS ]
  • 42
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 73821-95-1 ]
  • [ 73821-97-3 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • HXQGTFTSDYSKYLDEEAAKEFIAWLMNT-NH2; X=D-Ser [ No CAS ]
  • 43
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 23680-31-1 ]
  • [ 47355-10-2 ]
  • [ 423763-38-6 ]
  • 44
  • [ 2488-15-5 ]
  • [ 2488-17-7 ]
YieldReaction ConditionsOperation in experiment
100% General procedure: 38% Hydrogen peroxide (0.094 mL, 1.2 mmol) was added to a solution of Boc-Met or a methionine-containing peptide in acetic acid (7 mL). The solution was maintained at 20 C for 30 min. After that 5% Pd/C (0.2 g) was charged, and the mixture stirred for another 30 min. The charcoal was filtered off and the filtrate evaporated under vacuum. In the case of Boc-Met, the residue was dissolved in toluene, evaporated under vacuum, and the product dried in a vacuum desiccator over P4O10. In the case of a methionine-containing peptide, the residue was dissolved in water and lyophilized.
  • 45
  • [ 4530-20-5 ]
  • [ 15761-39-4 ]
  • [ 13139-16-7 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • (2S,4R)-Boc-4-phenoxy-pyrrolidine-2-carboxylic acid [ No CAS ]
  • [ 61925-77-7 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • [ 25024-53-7 ]
  • CAGWMAGIPGHPGHN-(glycyl-prolyl-hydroxyproline)<SUB>9</SUB> [ No CAS ]
  • 46
  • 5,8,11,14,17,20,23,26-octaoxa-2-azanonacosanedioic acid, 1-(9H-fluoren-9-ylmethyl) ester [ No CAS ]
  • [ 4530-20-5 ]
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • [ 57-10-3 ]
  • C70H111N9O20S [ No CAS ]
YieldReaction ConditionsOperation in experiment
General procedure: The second portion of the CCK4 peptide and the SubP peptide were modified on resin as follows to yield test lipidated peptides (1-SubP-COOH and 1-CCK4-Gly-COOH). Spacers (these are AA's used between the peg linker and the peptide of interest) were introduced on the peptides before pegylation (KGG for SubP and GG for CCK4). The free N-terminus of the peptide on resin was first pegylated with N-Fmoc-PEG8-propionic acid using standard HBTU coupling conditions. The N-Fmoc protecting group was removed by treatment with 10% piperidine in DMF (N,N-Dimethylformamide) for 5 min. Palmitic acid was subsequently coupled with the N-terminal free amine of the pegylated peptide. Peptides were cleaved from the resin using high HF conditions with minor modifications to the usual procedure. For the SubP peptide, longer times were used to ensure removal of Arg(Tos) protecting group (90% anhydrous HF/10% anisole at 0 C. for 2 h). For the CCK-4 peptides, 1,3-propanedithiol was used in the HF cleavage mixture to ensure deprotection of the formyl protecting group and prevent oxidation of methionine to its sulfoxide derivative: 85% anhydrous HF/10% anisole/5% PDT (1,3-propaneithiol) at 0 C. for 2 h) (Matsueda, 1982). Following cleavage from resin, peptides were precipitated with cold Et2O. Unmodified peptides were extracted using 10% AcOH in water and the lipidated peptides were extracted using 10% AcOH in H2O followed by 10% AcOH in 50% EtOH/H2O. Crude peptides were purified by RP-HPLC [Vydac C18, 10 m, 22 mm×250 mm]. The purities of the peptides were assessed by analytical RP-HPLC [Vydac C18, 5 m, 4 mm×250 mm].
  • 47
  • [ 4530-20-5 ]
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 13734-34-4 ]
  • [ 47355-10-2 ]
  • NH2-WMDFG-COOH [ No CAS ]
YieldReaction ConditionsOperation in experiment
Peptides illustrated in FIG. 9 were synthesized using the in-situ neutralization protocol for t-Boc chemistry (Schnolzer et al., In situ neutralization in Boc-chemistry solid phase peptide synthesis. Rapid, high yield assembly of difficult sequences, 1992, International journal of peptide and protein research 40:180-193) on PAM resin on a 0.5 mmol scale. Amino acids were used with the following side chain protecting groups: Arg(Tos), Asp(OBzl), Gln(Xan), Lys(Fmoc), Lys(2-Cl-Z) and Trp(For). Peptide coupling reactions were carried out with a 4-fold excess (2.0 mmol) of activated amino acid for at least 15 min. The t-Boc protecting group on the N-terminus was removed using trifluoroacetic acid (TFA). The PAM resin from the CCK4 peptide synthesis was split into two equal portions. One portion of the resin was used for synthesizing non-lipidated peptides. The CCK4 (s-CCK-Gly-COOH) peptide was left unmodified at the N-terminus. This peptide served as positive control for the lipidated counterparts.
  • 48
  • 5,8,11,14,17,20,23,26-octaoxa-2-azanonacosanedioic acid, 1-(9H-fluoren-9-ylmethyl) ester [ No CAS ]
  • [ 4530-20-5 ]
  • [ 15761-39-4 ]
  • [ 13139-15-6 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 13836-37-8 ]
  • [ 84624-27-1 ]
  • [ 54613-99-9 ]
  • [ 55260-24-7 ]
  • [ 57-10-3 ]
  • C111H185N21O28S [ No CAS ]
YieldReaction ConditionsOperation in experiment
General procedure: The second portion of the CCK4 peptide and the SubP peptide were modified on resin as follows to yield test lipidated peptides (1-SubP-COOH and 1-CCK4-Gly-COOH). Spacers (these are AA's used between the peg linker and the peptide of interest) were introduced on the peptides before pegylation (KGG for SubP and GG for CCK4). The free N-terminus of the peptide on resin was first pegylated with N-Fmoc-PEG8-propionic acid using standard HBTU coupling conditions. The N-Fmoc protecting group was removed by treatment with 10% piperidine in DMF (N,N-Dimethylformamide) for 5 min. Palmitic acid was subsequently coupled with the N-terminal free amine of the pegylated peptide. Peptides were cleaved from the resin using high HF conditions with minor modifications to the usual procedure. For the SubP peptide, longer times were used to ensure removal of Arg(Tos) protecting group (90% anhydrous HF/10% anisole at 0 C. for 2 h). For the CCK-4 peptides, 1,3-propanedithiol was used in the HF cleavage mixture to ensure deprotection of the formyl protecting group and prevent oxidation of methionine to its sulfoxide derivative: 85% anhydrous HF/10% anisole/5% PDT (1,3-propaneithiol) at 0 C. for 2 h) (Matsueda, 1982). Following cleavage from resin, peptides were precipitated with cold Et2O. Unmodified peptides were extracted using 10% AcOH in water and the lipidated peptides were extracted using 10% AcOH in H2O followed by 10% AcOH in 50% EtOH/H2O. Crude peptides were purified by RP-HPLC [Vydac C18, 10 m, 22 mm×250 mm]. The purities of the peptides were assessed by analytical RP-HPLC [Vydac C18, 5 m, 4 mm×250 mm].
  • 49
  • [ 4530-20-5 ]
  • [ 15761-39-4 ]
  • [ 13139-15-6 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 13836-37-8 ]
  • [ 84624-27-1 ]
  • [ 54613-99-9 ]
  • [ 55260-24-7 ]
  • C64H98N16O14S [ No CAS ]
YieldReaction ConditionsOperation in experiment
Peptides illustrated in FIG. 9 were synthesized using the in-situ neutralization protocol for t-Boc chemistry (Schnolzer et al., In situ neutralization in Boc-chemistry solid phase peptide synthesis. Rapid, high yield assembly of difficult sequences, 1992, International journal of peptide and protein research 40:180-193) on PAM resin on a 0.5 mmol scale. Amino acids were used with the following side chain protecting groups: Arg(Tos), Asp(OBzl), Gln(Xan), Lys(Fmoc), Lys(2-Cl-Z) and Trp(For). Peptide coupling reactions were carried out with a 4-fold excess (2.0 mmol) of activated amino acid for at least 15 min. The t-Boc protecting group on the N-terminus was removed using trifluoroacetic acid (TFA). The PAM resin from the CCK4 peptide synthesis was split into two equal portions. One portion of the resin was used for synthesizing non-lipidated peptides. The CCK4 (s-CCK-Gly-COOH) peptide was left unmodified at the N-terminus. This peptide served as positive control for the lipidated counterparts.
  • 50
  • boc-O-benzyl-threonine resin [ No CAS ]
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 61925-77-7 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • [ 98115-14-1 ]
  • [ 20866-46-0 ]
  • His-Ser-Gln-Gly-Thr-Phe-Thr-Ser-Asp-Tyr-Ser-Lys-Tyr-Leu-Asp-Ser-Cys-Arg-Ala-Gln-Asp-Phe-Val-Gln-Trp-Leu-Met-Asn-Thr [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 1 Synthesis of Glucagon Cys17(1-29) and Similar MonoCys Analogs (0283) 0.2mmole Boc Thr(OBzl) Pam resin (SynChem Inc) in a 60ml reaction vessel and the following sequence was entered and run on a modified Applied Biosystems 430A Peptide Synthesizer using FastBoc HBTU-activated single couplings. (0284) HSQGTFTSDYSKYLDSCRAQDFVQWLMNT (SEQ ID NO: 35) The following side chain protecting groups were used: Arg(Tos), Asp(OcHex), Asn(Xan), Cys(pMeBzl), Glu(OcHex), His(Boc), Lys(2Cl-Z), Ser(Bzl), Thr(Bzl), Trp(CHO), and Tyr(Br-Z). The completed peptidyl resin was treated with 20% piperidine/dimethylformamide to remove the Trp formyl protection then transferred to an HF reaction vessel and dried in vacuo. 1.0ml p-cresol and 0.5 ml dimehyl sulfide were added along with a magnetic stir bar. The vessel was attached to the HF apparatus (Pennisula Labs), cooled in a dry ice/methanol bath, evacuated, and aprox. 10ml liquid hydrogen fluoride was condensed in. The reaction was stirred in an ice bath for 1hr then the HF was removed in vacuo. The residue was suspended in ethyl ether; the solids were filtered, washed with ether, and the peptide extracted into 50 ml aqueous acetic acid. An analytical HPLC was run [0.46 x 5 cm Zorbax C8, 1 ml/min, 45C, 214nm, A buffer of 0.1%TFA, B buffer of 0.1%TFA/90%ACN, gradient=10%B to 80%B over 10min.] with a small sample of the cleavage extract. The remaining extract was loaded onto a 2.2 x 25cm Kromasil C18 preparative reverse phase column and an acetonitrile gradient was run using a Pharmacia FPLC system. 5min fractions were collected while monitoring the UV at 214nm (2.0A). A=0.1%TFA, B=0.1%TFA/50%acetonitrile. Gradient = 30%B to 100%B over 450min. (0285) The fractions containing the purest product (48-52) were combined frozen, and lyophilized to give 30.1mg. An HPLC analysis of the product demonstrated a purity of>90% and MALDI mass spectral analysis demonstrated the desired mass of 3429.7. Glucagon Cys21, Glucagon Cys24, and Glucagon Cys29 were similarly prepared.
  • 51
  • [ 15761-39-4 ]
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 61925-77-7 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 65420-40-8 ]
  • [ 98115-14-1 ]
  • [ 20866-46-0 ]
  • HSQGTFTSDYSKYLDSRRAQDFVQWLMNTGPSSGAPPPS [ No CAS ]
YieldReaction ConditionsOperation in experiment
198.1 mg EXAMPLE 2 Synthesis of Glucagon-Cex and Other C-Terminal Extended Analogs. (0286) 285mg (0.2mmole) methoxybenzhydrylamine resin (Midwest Biotech) was placed in a 60ml reaction vessel and the following sequence was entered and run on a modified Applied Biosystems 430A peptide synthesizer using FastBoc HBTU-activated single couplings. (0287) HSQGTFTSDYSKYLDSRRAQDFVQWLMNTGPSSGAPPPS (SEQ ID NO: 36) The following side chain protecting groups were used: Arg(Tos), Asp(OcHex), Asn(Xan), Cys(pMeBzl), Glu(OcHex), His(Boc), Lys(2Cl-Z), Ser(Bzl), Thr(Bzl), Trp(CHO), and Tyr(Br-Z). The completed peptidyl resin was treated with 20% piperidine/dimethylformamide to remove the Trp formyl protection then transferred to HF reaction vessel and dried in vacuo. 1.0ml p-cresol and 0.5 ml dimehyl sulfide were added along with a magnetic stir bar. The vessel was attached to the HF apparatus (Pennisula Labs), cooled in a dry ice/methanol bath, evacuated, and aprox. 10ml liquid hydrogen fluoride was condensed in. The reaction was stirred in an ice bath for 1hr then the HF was removed in vacuo. The residue was suspended in ethyl ether; the solids were filtered, washed with ether, and the peptide extracted into 50 ml aqueous acetic acid. An analytical HPLC was run [0.46 x 5 cm Zorbax C8, 1 ml/min, 45C, 214nm, A buffer of 0.1%TFA, B buffer of 0.1%TFA/90%ACN, gradient=10%B to 80%B over 10min.] on an aliquot of the cleavage extract. The extract was loaded onto a 2.2 x 25cm Kromasil C18 preparative reverse phase column and an acetonitrile gradient was run for elution using a Pharmacia FPLC system. 5min fractions were collected while monitoring the UV at 214nm (2.0A). A=0.1%TFA, B=0.1%TFA/50%acetonitrile. Gradient = 30%B to 100%B over 450min. Fractions 58-65 were combined, frozen and lyophilized to give 198.1mg. (0288) HPLC analysis of the product showed a purity of greater than 95%. MALDI mass spectral analysis showed the presence of the desired theoretical mass of 4316.7 with the product as a C-terminal amide. Oxyntomodulin and oxyntomodulin-KRNR were similarly prepared as the C-terminal carboxylic acids starting with the appropriately loaded PAM-resin.
  • 52
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13734-34-4 ]
  • [ 15260-10-3 ]
  • [ 13836-37-8 ]
  • [ 23680-31-1 ]
  • [ 73821-95-1 ]
  • [ 123417-18-5 ]
  • [ 84624-27-1 ]
  • [ 47689-67-8 ]
  • [ 47355-10-2 ]
  • [ 83468-83-1 ]
  • [ 65420-40-8 ]
  • [ 98115-14-1 ]
  • HSQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2, lactam 12-16 [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 11 Synthesis of Glucagon Lactams (0299) 285 mg (0.2 mmole) methoxybenzhydrylamine resin (Midwest Biotech) was added to a 60 mL reaction vessels and the following sequence was assembled on a modified Applied Biosystems 430A peptide synthesizer using Boc DEPBT-activated single couplings. HSQGTFTSDYSKYLDERRAQDFVQWLMNT-NH2 (12-16 Lactam; SEQ ID NO: 12) (0300) The following side chain protecting groups were used: Arg(Tos), Asp(OcHx), Asn(Xan), Glu(OFm), His(BOM), Lys(Fmoc), Ser(Bzl), Thr(Bzl), Trp(CHO), Tyr(Br-Z). Lys(Cl-Z) was used at position 12 if lactams were constructed from 16-20, 20-24, or 24-28. The completed peptidyl resin was treated with 20% piperidine/dimethylformamide for one hour with rotation to remove the Trp formyl group as well as the Fmoc and OFm protection from Lys12 and Glu16. Upon confirmation of removal by a positive ninhydrin test, the resin was washed with dimethylformamide, followed by dichloromethane and than again with dimethylformamide. The resin was treated with 520 mg (1 mmole) Benzotriazole-1-yl-oxy-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBOP) in dimethylformamide and diisopropylethylamine (DIEA). The reaction proceeded for 8-10 hours and the cyclization was confirmed by a negative ninhydrin reaction. The resin was washed with dimethylformamide, followed by dichloromethane and subsequently treated with trifluoroacetic acid for 10 minutes. The removal of the Boc group was confirmed by a positive ninhydrin reaction. The resin was washed with dimethylformamide and dichloromethane and dried before being transferred to a hydrofluoric acid (HF) reaction vessel. 500 muL p-cresol was added along with a magnetic stir bar. The vessel was attached to the HF apparatus (Peninsula Labs), cooled in a dry ice/methanol bath, evacuated, and approximately 10 mL of liquid hydrofluoric acid was condensed into the vessel. The reaction was stirred for 1 hour in an ice bath and the HF was subsequently removed in vacuo. The residue was suspended in ethyl ether; the solids were filtered, washed with ether, and the peptide was solubilized with 150 mL 20% acetonitrile/1% acetic acid. (0301) An analytical HPLC analysis of the crude solubilized peptide was conducted under the following conditions [4.6 X 30 mm Xterra C8, 1.50 mL/min, 220 nm, A buffer 0.1% TFA/10% ACN, B buffer 0.1% TFA/100% ACN, gradient 5-95%B over 15 minutes]. The extract was diluted twofold with water and loaded onto a 2.2 X 25 cm Vydac C4 preparative reverse phase column and eluted using an acetonitrile gradient on a Waters HPLC system (A buffer of 0.1% TFA/10% ACN, B buffer of 0.1% TFA/10% CAN and a gradient of 0-100% B over 120 minutes at a flow of 15.00 ml/min. HPLC analysis of the purified peptide demonstrated greater than 95% purity and electrospray ionization mass spectral analysis confirmed a mass of 3506 Da for the 12-16 lactam. Lactams from 16-20, 20-24, and 24-28 were prepared similarly.
  • 53
  • [ 883566-52-7 ]
  • [ 15761-39-4 ]
  • [ 13734-41-3 ]
  • [ 13139-16-7 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 7536-58-5 ]
  • [ 15260-10-3 ]
  • [ 2419-94-5 ]
  • [ 54613-99-9 ]
  • [ 47689-67-8 ]
  • [ 55260-24-7 ]
  • [ 25024-53-7 ]
  • C130H200N32O39S2 [ No CAS ]
  • 54
  • [ 4530-20-5 ]
  • [ 13734-41-3 ]
  • [ 13139-15-6 ]
  • [ 15761-38-3 ]
  • [ 2488-15-5 ]
  • [ 13726-85-7 ]
  • [ 27144-18-9 ]
  • [ 13574-13-5 ]
  • [ 54613-99-9 ]
  • [ 51077-16-8 ]
  • [ 47355-10-2 ]
  • Boc-R(PG)-OH [ No CAS ]
  • C99H150N27O26PolS3 [ No CAS ]
  • 55
  • [ 2488-15-5 ]
  • [ 198904-31-3 ]
  • (5S,10S,11S,14S)-11-benzyl-5,14-di-tert-butyl-3,6,13,16-tetraoxo-8-(4-(pyridin-2-yl)benzyl)-2,17-dioxa-4,7,8,12,15-pentaazaoctadecan-10-yl (S)-2-((tert-butoxycarbonyl)amino)-4-(methylthio)butanoate [ No CAS ]
 

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