88319-43-1|(R)-2-Amino-4,4-dimethylpentanoic acid| Ambeed

Size	Price	VIP Price	US Stock	Global Stock	In Stock
{[ item.pr_size ]}		Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price, item.vip_usd) ]}

US Stock: ship in 0-1 business day
Global Stock: ship in 5-7 days

{[ item.pr_size ]}

In Stock

- +

Please Login or Create an Account to: See VIP prices and availability

US Stock: ship in 0-1 business day
Global Stock: ship in 2 weeks

Quality Control of [ 88319-43-1 ] Purity: 97% SDS Specification

COA

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

NMR

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

CNMR

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

HPLC

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

LC-MS

Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.

1-2 Day Shipping
High Quality
Technical Support

Product Details of [ 88319-43-1 ]

CAS No. :	88319-43-1
Formula :	C₇H₁₅NO₂
M.W :	145.20
SMILES Code :	CC(C)(C)C[C@@H](N)C(O)=O
MDL No. :	MFCD00038404
InChI Key :	LPBSHGLDBQBSPI-RXMQYKEDSA-N
Pubchem ID :	6950508

Safety of [ 88319-43-1 ]

GHS Pictogram:
Signal Word:	Warning
Hazard Statements:	H302-H315-H319-H335
Precautionary Statements:	P261-P305+P351+P338

Computational Chemistry of [ 88319-43-1 ] Show Less

Physicochemical Properties

Num. heavy atoms	10
Num. arom. heavy atoms	0
Fraction Csp3	0.86
Num. rotatable bonds	3
Num. H-bond acceptors	3.0
Num. H-bond donors	2.0
Molar Refractivity	39.98
TPSA ? Topological Polar Surface Area: Calculated from Ertl P. et al. 2000 J. Med. Chem.	63.32 Å²

Lipophilicity

Log P_o/w (iLOGP)? iLOGP: in-house physics-based method implemented from Daina A et al. 2014 J. Chem. Inf. Model.	1.26
Log P_o/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry	-1.42
Log P_o/w (WLOGP)? WLOGP: Atomistic method implemented from Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.	0.83
Log P_o/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.	-1.47
Log P_o/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	0.1
Consensus Log P_o/w? Consensus Log P_o/w: Average of all five predictions	-0.14

Water Solubility

Log S (ESOL):? ESOL: Topological method implemented from Delaney JS. 2004 J. Chem. Inf. Model.	0.35
Solubility	327.0 mg/ml ; 2.25 mol/l
Class? Solubility class: Log S scale Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly	Highly soluble
Log S (Ali)? Ali: Topological method implemented from Ali J. et al. 2012 J. Chem. Inf. Model.	0.59
Solubility	568.0 mg/ml ; 3.91 mol/l
Class? Solubility class: Log S scale Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly	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	-0.54
Solubility	42.3 mg/ml ; 0.291 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.	-8.19 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	1.0
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat implemented from Martin YC. 2005 J. Med. Chem.	0.55

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<1.0
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)	1.48

Application In Synthesis of [ 88319-43-1 ]

* 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.

Upstream synthesis route of [ 88319-43-1 ]
Downstream synthetic route of [ 88319-43-1 ]

[ 88319-43-1 ] Synthesis Path-Upstream 1~10

1
[ 34906-87-1 ]
[ 3060-50-2 ]
[ 119-61-9 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

Yield	Reaction Conditions	Operation in experiment
62 % ee	With C₃₉H₃₃N₃O₂*2ClH In methanol; water at 20℃; for 72 h;	General procedure: To a 5 mL vial equipped with a magnetic stirrer bar were added 3-cyclohexyl-2-oxopropanoic acid (1j) (0.0510 g, 0.30 mmol), 2,2-diphenylglycine (2) (0.0681 g, 0.30 mmol), chiral pyridoxamine 6g (0.0195 g, 0.030 mmol), and MeOH-H2O (8:2) (3.0 mL). The mixture was stirred at 20 °C for 3 days. The reaction mixture was transferred to a 25 mL round-bottom flask and MeOH was added until all the solid was dissolved. Then silica gel (0.50 g) was added. After removal of the solvent in vacuo at 20 °C, the resulting residue was submitted to column chromatography on silica gel (EtOH/ethyl acetate/25-28percent ammonia solution =100:58:16) to give compound 3j (0.0401 g, 78percent yield, 52percent ee) as a white solid. The enantiomeric excesses of 3b-k were deteremined by HPLC analysis after being converted to N-benzoyl methyl esters by treatment with thionyl chloride in methanol and subsequent reaction benzoyl chloride.7 The enantiomeric excess of 3a was deteremined by HPLC analysis after being converted to its methyl ester by treatment with CH2N2 in methanol.

References: [1] Tetrahedron Letters, 2016, vol. 57, # 41, p. 4612 - 4615.

2
[ 34906-87-1 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

References: [1] Organic Letters, 2015, vol. 17, # 23, p. 5784 - 5787.

3
[ 479353-90-7 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

Yield	Reaction Conditions	Operation in experiment
79% ee	at 20℃; for 7.5 h; Enzymatic reaction	Screening of nitrilases against target substrate 4-methyl-D-leucine and 4-methyl-L-leucine (0269) Hydrolysis of 2-amino-4,4-dimethyl pentanenitrile was performed by several of the nitrilases. Of these, some were shown to hydrolyse the nitrile to the L-isomer of the corresponding acid and were selected for further characterization. [tabl0013-en] Table 10. Summary of hit enzymes for enantioselective hydrolysis of 2-amino-4,4-dimethyl pentanenitrileSEQ ID NOS: Conversion To Product (percent) Time For Highest Conversion (h) ee (percent) Turnover (g Product/kg Nitrilase/h) Specific Activity (µmol Product/mg Nitrilase/h) Conditions¹ 103, 104 30 0.5 91 12489 36 pH 7, room temp 59, 60 30 0.5 >99 33806 233 pH 7, room temp 221, 222 32 7.5 79 1098 7 pH 6, 38 °C [tabl0014-en] Table 11. Summary of optimal conditions determined from characterization experiments for enantioselective hydrolysis of 2-amino-4,4-dimethyl pentanenitrileSEQ ID NOS: Optimum pH Optimum Temp °C Solvent Tolerance 103, 104 7 23 25percent MeOH, 10percent IPA 59,60 8 23 25percent MeOH 221,222 6 38 25percent MeOH, 10percent IPA

References: [1] Patent: EP2319919, 2015, B1, . Location in patent: Paragraph 0269-0270.

4
[ 3027-05-2 ]
[ 630-19-3 ]
[ 3060-50-2 ]
[ 119-61-9 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

References: [1] Tetrahedron Letters, 2016, vol. 57, # 41, p. 4612 - 4615.

5
[ 34906-87-1 ]
[ 3060-50-2 ]
[ 119-61-9 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

Yield	Reaction Conditions	Operation in experiment
62 % ee	With C₃₉H₃₃N₃O₂*2ClH In methanol; water at 20℃; for 72 h;	General procedure: To a 5 mL vial equipped with a magnetic stirrer bar were added 3-cyclohexyl-2-oxopropanoic acid (1j) (0.0510 g, 0.30 mmol), 2,2-diphenylglycine (2) (0.0681 g, 0.30 mmol), chiral pyridoxamine 6g (0.0195 g, 0.030 mmol), and MeOH-H2O (8:2) (3.0 mL). The mixture was stirred at 20 °C for 3 days. The reaction mixture was transferred to a 25 mL round-bottom flask and MeOH was added until all the solid was dissolved. Then silica gel (0.50 g) was added. After removal of the solvent in vacuo at 20 °C, the resulting residue was submitted to column chromatography on silica gel (EtOH/ethyl acetate/25-28percent ammonia solution =100:58:16) to give compound 3j (0.0401 g, 78percent yield, 52percent ee) as a white solid. The enantiomeric excesses of 3b-k were deteremined by HPLC analysis after being converted to N-benzoyl methyl esters by treatment with thionyl chloride in methanol and subsequent reaction benzoyl chloride.7 The enantiomeric excess of 3a was deteremined by HPLC analysis after being converted to its methyl ester by treatment with CH2N2 in methanol.

References: [1] Tetrahedron Letters, 2016, vol. 57, # 41, p. 4612 - 4615.

6
[ 34906-87-1 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

References: [1] Organic Letters, 2015, vol. 17, # 23, p. 5784 - 5787.

7
[ 630-19-3 ]
[ 88319-43-1 ]

References: [1] Journal of the Chemical Society, Chemical Communications, 1994, # 17, p. 1915 - 1916.

8
[ 479353-90-7 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

Yield	Reaction Conditions	Operation in experiment
79% ee	at 20℃; for 7.5 h; Enzymatic reaction	Screening of nitrilases against target substrate 4-methyl-D-leucine and 4-methyl-L-leucine (0269) Hydrolysis of 2-amino-4,4-dimethyl pentanenitrile was performed by several of the nitrilases. Of these, some were shown to hydrolyse the nitrile to the L-isomer of the corresponding acid and were selected for further characterization. [tabl0013-en] Table 10. Summary of hit enzymes for enantioselective hydrolysis of 2-amino-4,4-dimethyl pentanenitrileSEQ ID NOS: Conversion To Product (percent) Time For Highest Conversion (h) ee (percent) Turnover (g Product/kg Nitrilase/h) Specific Activity (µmol Product/mg Nitrilase/h) Conditions¹ 103, 104 30 0.5 91 12489 36 pH 7, room temp 59, 60 30 0.5 >99 33806 233 pH 7, room temp 221, 222 32 7.5 79 1098 7 pH 6, 38 °C [tabl0014-en] Table 11. Summary of optimal conditions determined from characterization experiments for enantioselective hydrolysis of 2-amino-4,4-dimethyl pentanenitrileSEQ ID NOS: Optimum pH Optimum Temp °C Solvent Tolerance 103, 104 7 23 25percent MeOH, 10percent IPA 59,60 8 23 25percent MeOH 221,222 6 38 25percent MeOH, 10percent IPA

References: [1] Patent: EP2319919, 2015, B1, . Location in patent: Paragraph 0269-0270.

9
[ 3027-05-2 ]
[ 630-19-3 ]
[ 3060-50-2 ]
[ 119-61-9 ]
[ 57224-50-7 ]
[ 88319-43-1 ]

References: [1] Tetrahedron Letters, 2016, vol. 57, # 41, p. 4612 - 4615.

10
[ 161283-41-6 ]
[ 88319-43-1 ]

References: [1] Journal of the Chemical Society, Chemical Communications, 1994, # 17, p. 1915 - 1916.

[ 88319-43-1 ] Synthesis Path-Downstream 1~35

1
[ 161283-41-6 ]
[ 88319-43-1 ]

References: [1]Journal of the Chemical Society. Chemical communications,1994,p. 1915 - 1916.

2
4,4-Dimethyl-2-((4S,5R)-2-oxo-4,5-diphenyl-oxazolidin-3-yl)-pentanoic acid benzyl ester [ No CAS ]
[ 57224-50-7 ]
[ 88319-43-1 ]

References: [1]Journal of the American Chemical Society,1994,vol. 116,p. 8126 - 8132.

3
[ 88319-43-1 ]
[ 1025804-35-6 ]