N-Boc-4-oxo-L-proline methyl ester

Modify Date: 2025-08-26 18:32:18

N-Boc-4-oxo-L-proline methyl ester Structure
N-Boc-4-oxo-L-proline methyl ester structure
Common Name N-Boc-4-oxo-L-proline methyl ester
CAS Number 256487-77-1 Molecular Weight 243.256
Density 1.3±0.1 g/cm3 Boiling Point 386.8±42.0 °C at 760 mmHg
Molecular Formula C11H17NO5 Melting Point N/A
MSDS N/A Flash Point 187.7±27.9 °C

 Names

Name 1-O-tert-butyl 2-O-methyl (2R)-4-oxopyrrolidine-1,2-dicarboxylate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.3±0.1 g/cm3
Boiling Point 386.8±42.0 °C at 760 mmHg
Molecular Formula C11H17NO5
Molecular Weight 243.256
Flash Point 187.7±27.9 °C
Exact Mass 243.110672
PSA 72.91000
LogP 0.10
Vapour Pressure 0.0±1.9 mmHg at 25°C
Index of Refraction 1.506
Storage condition 2~8℃

 Safety Information

Hazard Codes Xi
HS Code 2933990090

 Synthetic Route

~84%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: WO2012/125887 A1, ; Page/Page column 74-75 ; WO 2012/125887 A1

~70%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Organic Letters, , vol. 11, # 6 p. 1245 - 1248

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Journal of Medicinal Chemistry, , vol. 42, # 26 p. 5426 - 5436

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Journal of Medicinal Chemistry, , vol. 42, # 26 p. 5426 - 5436

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Journal of Medicinal Chemistry, , vol. 42, # 26 p. 5426 - 5436

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 21, # 12 p. 3771 - 3773

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 21, # 12 p. 3771 - 3773

~%

N-Boc-4-oxo-L-proline methyl ester Structure

N-Boc-4-oxo-L-p...

CAS#:256487-77-1

Literature: WO2012/162635 A1, ; WO 2012/162635 A1

 Customs

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

Boc-ketopyrrolidine methyl ester
1-tert-butyl 2-methyl (2R)-4-oxopyrrolidine-1,2-dicarboxylate
(R)-N-Boc-2-methoxycarbonyl-4-pyrrolidone
Boc-4-oxo-D-proline methyl ester
4-oxopyrrolidine-1,2R-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
PS-J-119
1,2-Pyrrolidinedicarboxylic acid, 2-methyl-4-oxo-, 1-(1,1-dimethylethyl) ester, (2R)-
(R)-1-TERT-BUTYL 2-METHYL 4-OXOPYRROLIDINE-1,2-DICARBOXYLATE
4-oxopyrrolidine-N-1,2-(R)-dicarboxylic acid 1-tert-butyl ester 2-methyl ester
1-tert-butyl 2-methyl (R)-4-oxopyrrolidine-1,2-dicarboxylate
2-Methyl-1-{[(2-methyl-2-propanyl)oxy]carbonyl}-4-oxo-D-proline
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