4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

Base Information

Chemical Name:4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester
CAS No.:121148-05-8
Molecular Formula:C₁₇H₂₄N₂O₆S
Molecular Weight:384.453
Hs Code.:

Synonyms:4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

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Chemical Property of 4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

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Technology Process of 4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

There total 10 articles about 4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 59.0%

: 98-09-9
benzenesulfonyl chloride

: 121148-00-3,1018667-18-9
1-(1,1-dimethylethyl) 2-methyl (2S,4R)-4-amino-1,2-pyrrolidinedicarboxylate

: 121148-05-8
4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

Guidance literature:: With dmap; triethylamine; In dichloromethane; at 0 - 5 ℃;
DOI:10.1021/jo011160b

Reference yield:

: 40216-83-9
L-4-hydroxyproline methyl ester hydrochloride

: 121148-05-8
4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

Guidance literature:: Multi-step reaction with 8 steps

1: 53.4 g / triethylamine / CH₂Cl₂ / 4 h / 0 - 5 °C

2: 56.2 g / triethylamine / CH₂Cl₂ / 3 h / 0 - 5 °C

3: 88.7 percent / dimethylsulfoxide / 90 °C

4: 98.4 percent / potassium carbonate / methanol / 1 h / 20 °C

5: 100 percent / triethylamine / CH₂Cl₂ / 4 h / 0 - 5 °C

6: 90.8 percent / sodium azide / dimethylsulfoxide / 90 °C

7: H₂ / 10 percent Pd/C / methanol / 3 h / 20 °C / 2280 Torr

8: 22.5 g / pyridine / 5 h / 0 - 5 °C

With sodium azide; hydrogen; potassium carbonate; triethylamine; palladium on activated charcoal; In pyridine; methanol; dichloromethane; dimethyl sulfoxide;
DOI:10.1016/S0968-0896(01)00397-2

Reference yield:

: 24424-99-5
di-tert-butyl dicarbonate

: 121148-05-8
4(R)-[(phenylsulfonyl)amino]-1,2(S)-pyrrolidinedicarboxylic acid, 1-(1,1-dimethylethyl)-2-methyl ester

Guidance literature:: Multi-step reaction with 8 steps

1: 53.4 g / triethylamine / CH₂Cl₂ / 4 h / 0 - 5 °C

2: 56.2 g / triethylamine / CH₂Cl₂ / 3 h / 0 - 5 °C

3: 88.7 percent / dimethylsulfoxide / 90 °C

4: 98.4 percent / potassium carbonate / methanol / 1 h / 20 °C

5: 100 percent / triethylamine / CH₂Cl₂ / 4 h / 0 - 5 °C

6: 90.8 percent / sodium azide / dimethylsulfoxide / 90 °C

7: H₂ / 10 percent Pd/C / methanol / 3 h / 20 °C / 2280 Torr

8: 22.5 g / pyridine / 5 h / 0 - 5 °C

With sodium azide; hydrogen; potassium carbonate; triethylamine; palladium on activated charcoal; In pyridine; methanol; dichloromethane; dimethyl sulfoxide;
DOI:10.1016/S0968-0896(01)00397-2