[ CAS No. 254881-77-1 ] {[proInfo.proName]}

Name: 254881-77-1|(2R,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate|95%
Brand: Ambeed
SKU: A162794
Price: 26.0 USD
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Quality Control of [ 254881-77-1 ]

COA NMR CNMR HPLC LC-MS

Related Doc. of [ 254881-77-1 ]

SDS Specification

Alternatived Products of [ 254881-77-1 ]

Product Details of [ 254881-77-1 ]

CAS No. :	254881-77-1	MDL No. :	MFCD08704545
Formula :	C₁₁H₂₀N₂O₄	Boiling Point :	-
Linear Structure Formula :	-	InChI Key :	IOLQYMRFIIVPMQ-JGVFFNPUSA-N
M.W :	244.29	Pubchem ID :	1519499
Synonyms :

Calculated chemistry of [ 254881-77-1 ]

Physicochemical Properties

Num. heavy atoms :	17
Num. arom. heavy atoms :	0
Fraction Csp3 :	0.82
Num. rotatable bonds :	5
Num. H-bond acceptors :	5.0
Num. H-bond donors :	1.0
Molar Refractivity :	65.39
TPSA :	81.86 Å²

Pharmacokinetics

GI absorption :	High
BBB permeant :	No
P-gp substrate :	No
CYP1A2 inhibitor :	No
CYP2C19 inhibitor :	No
CYP2C9 inhibitor :	No
CYP2D6 inhibitor :	No
CYP3A4 inhibitor :	No
Log Kp (skin permeation) :	-7.56 cm/s

Lipophilicity

Log Po/w (iLOGP) :	2.51
Log Po/w (XLOGP3) :	0.32
Log Po/w (WLOGP) :	0.12
Log Po/w (MLOGP) :	0.22
Log Po/w (SILICOS-IT) :	-0.34
Consensus Log Po/w :	0.56

Druglikeness

Lipinski :	0.0
Ghose :	None
Veber :	0.0
Egan :	0.0
Muegge :	0.0
Bioavailability Score :	0.55

Water Solubility

Log S (ESOL) :	-1.23
Solubility :	14.5 mg/ml ; 0.0594 mol/l
Class :	Very soluble
Log S (Ali) :	-1.6
Solubility :	6.1 mg/ml ; 0.025 mol/l
Class :	Very soluble
Log S (SILICOS-IT) :	-0.49
Solubility :	79.4 mg/ml ; 0.325 mol/l
Class :	Soluble

Medicinal Chemistry

PAINS :	0.0 alert
Brenk :	1.0 alert
Leadlikeness :	1.0
Synthetic accessibility :	3.3

Safety of [ 254881-77-1 ]

Signal Word:	Warning	Class:	N/A
Precautionary Statements:	P261-P305+P351+P338	UN#:	N/A
Hazard Statements:	H302-H315-H319-H335	Packing Group:	N/A
GHS Pictogram:

Application In Synthesis of [ 254881-77-1 ]

* 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 [ 254881-77-1 ]
Downstream synthetic route of [ 254881-77-1 ]

[ 254881-77-1 ] Synthesis Path-Upstream 1~7

1
[ 185304-04-5 ]
[ 254881-77-1 ]

Yield	Reaction Conditions	Operation in experiment
89%	With palladium on activated charcoal; hydrogen In methanol at 20℃; for 15 h;	(2R, 4S) -1-tert-Butyl 2-methyl 4-azidopyrrolidine-1, 2-dicarboxylate (150 mg, 0.390 mmol) and Pd/C (150 mg, 0.390 mmol) were added into methanol (150 mg, 0.390 mmol) , the system was exchanged with H₂ for 2 times, and then stirred at rt for 15 h. The reaction mixture was concentrated to give the title compound as gray oil (643 mg, 89)¹H NMR (600 MHz, CD₃OD) : δ ppm 4.38-4.41 (m, 1H) , 3.74-3.75 (m, 3H) , 3.64-3.69 (m, 1H) , 3.58-3.61 (m, 1H) , 3.16-3.21 (m, 1H) , 2.08-2.13 (m, 2H) , 1.42-1.48 (m, 9H) and MS-ESI: m/z 145.20 [M+H-100] ⁺.

Reference： [1] Patent: WO2016/34134, 2016, A1, . Location in patent: Paragraph 00803
[2] Journal of Medicinal Chemistry, 2000, vol. 43, # 26, p. 4948 - 4963
[3] Tetrahedron, 1996, vol. 52, # 47, p. 15017 - 15030
[4] Journal of Organic Chemistry, 2018, vol. 83, # 8, p. 4491 - 4504

2
[ 114676-69-6 ]
[ 254881-77-1 ]

Reference： [1] Journal of Medicinal Chemistry, 2000, vol. 43, # 26, p. 4948 - 4963
[2] Patent: WO2016/34134, 2016, A1,
[3] Journal of Organic Chemistry, 2018, vol. 83, # 8, p. 4491 - 4504

3
[ 148017-26-9 ]
[ 254881-77-1 ]

Reference： [1] Journal of Medicinal Chemistry, 2000, vol. 43, # 26, p. 4948 - 4963
[2] Journal of Organic Chemistry, 2018, vol. 83, # 8, p. 4491 - 4504

4
[ 24424-99-5 ]
[ 254881-77-1 ]

Reference： [1] Journal of Medicinal Chemistry, 2000, vol. 43, # 26, p. 4948 - 4963

5
[ 114676-59-4 ]
[ 254881-77-1 ]

Reference： [1] Journal of Medicinal Chemistry, 2000, vol. 43, # 26, p. 4948 - 4963

6
[ 135042-09-0 ]
[ 254881-77-1 ]

Reference： [1] Tetrahedron, 1996, vol. 52, # 47, p. 15017 - 15030
[2] Patent: WO2016/34134, 2016, A1,

7
[ 135042-12-5 ]
[ 254881-77-1 ]

Reference： [1] Journal of Organic Chemistry, 2018, vol. 83, # 8, p. 4491 - 4504

Same Skeleton Products

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Historical Records

Related Functional Groups of
[ 254881-77-1 ]

Amino Acid Derivatives

[ 1217474-04-8 ]

(2R,4R)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride

Similarity: 0.99

[ 1217446-43-9 ]

(2R,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride

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[ 171110-72-8 ]

Methyl (2S,4S)-1-Boc-4-aminopyrrolidine-2-carboxylate hydrochloride

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[ 132622-78-7 ]

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Ghs Precautionary Statements

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P220	Keep/Store away from clothing/combustible materials.
P221	Take any precaution to avoid mixing with combustibles
P222	Do not allow contact with air.
P223	Keep away from any possible contact with water, because of violent reaction and possible flash fire.
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P233	Keep container tightly closed.
P234	Keep only in original container.
P235	Keep cool
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P241	Use explosion-proof electrical/ventilating/lighting/equipment.
P242	Use only non-sparking tools.
P243	Take precautionary measures against static discharge.
P244	Keep reduction valves free from grease and oil.
P250	Do not subject to grinding/shock/friction.
P251	Pressurized container: Do not pierce or burn, even after use.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
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P270	Do not eat, drink or smoke when using this product.
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P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
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P285	In case of inadequate ventilation wear respiratory protection.
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P235 + P410	Keep cool. Protect from sunlight.
Response
Code	Phrase
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P321
P322
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P342	If experiencing respiratory symptoms:
P350	Gently wash with plenty of soap and water.
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P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
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P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
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P372	Explosion risk in case of fire.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
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P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
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P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
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P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
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P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
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Yield	Reaction Conditions	Operation in experiment
75%	With sodium tris(acetoxy)borohydride; In 1,2-dichloro-ethane; at 20℃; for 4h;	Step A: Methyl (2 R Lambda S s)-l-BOC-4-[(4.4-dimethylcvclohexyls)aminolpyrrolidine-2-carboxylate[642] Methyl (2/?,4S)-l-Boc-4-aminopyrrolidine-2-carboxylate (1.07 g, 4.38 mmol) obtained in Preparation 2 and 4,4-dimethylcyclohexanone (0.66 g, 5.25 mmol) were dissolved in DCE (20 mL) and NaBH(OAc)3 (1.39 g, 6.57 mmol) was added thereto at room temperature. The reaction solution was stirred for 4 hours at room temperature and was extracted with DCM (50 mL X 2) and EtOAc. The extracted organic solution was washed with brine, dried over MgSO4, filterated and concentrated in vacuo. The obtained residue was purified by column chromatography (eluent, EtO Ac/Hex = 1/2) to give the title compound (1.16 g, 75 %). [643] MS[M+H] = 355 (M+ 1) [644]
	With sodium tris(acetoxy)borohydride; In 1,2-dichloro-ethane; at 20℃; for 4h;	Methyl(2R,4S)-1-Boc-4-aminopyrrolidine-2-carboxylate (1.07 g, 4.38 mmol) obtained in Preparation 2 and 4,4-dimethylcyclohexanone (0.66 g, 5.25 mmol) were dissolved in DCE (20 mL) and NaBH(OAc)3 (1.39 g, 6.57 mmol) was added thereto at room temperature. The reaction solution was stirred for 4 hours at room temperature and was extracted with DCM (50 mL×2) and EtOAc. The extracted organic solution was washed with brine, dried over MgSO4, filterated and concentrated in vacuo. The obtained residue was purified by column chromatography (eluent, EtOAc/Hex=1/2) to give the title compound (1.16 g, 75 N.MS[M+H]=355 (M+1)

Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
Environmental hazards
Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere

[ CAS No. 254881-77-1 ] {[proInfo.proName]}

Quality Control of [ 254881-77-1 ]

Related Doc. of [ 254881-77-1 ]

Product Details of [ 254881-77-1 ]

Calculated chemistry of [ 254881-77-1 ]

Physicochemical Properties

Pharmacokinetics

Lipophilicity

Druglikeness

Water Solubility

Medicinal Chemistry

Safety of [ 254881-77-1 ]

Application In Synthesis of [ 254881-77-1 ]

[ 254881-77-1 ] Synthesis Path-Upstream 1~7

[ 254881-77-1 ] Synthesis Path-Downstream 1~43

Related Functional Groups of [ 254881-77-1 ]

Amino Acid Derivatives

Precautionary Statements-General

Prevention

Response

Storage

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Physical hazards

Health hazards

Environmental hazards

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Related Functional Groups of
[ 254881-77-1 ]