1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (R)-Benzyl 2-(pyrrolidine-1-carbonyl)pyrrolidine-1-carboxylate

HRID 1359740

반응식

HRID 1359740 반응식
[C:1]([N:11]1[CH2:18][CH2:17][CH2:16][C@@H:12]1[C:13]([OH:15])=O)([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].CCN=C=N[CH2:24][CH2:25][CH2:26][N:27]([CH3:29])C.C1C=CC2N(O)N=NC=2C=1.N1CCCC1>CN(C=O)C.O.C(=O)(O)[O-].[Na+]>[CH2:4]([O:3][C:1]([N:11]1[CH2:18][CH2:17][CH2:16][C@@H:12]1[C:13]([N:27]1[CH2:26][CH2:25][CH2:24][CH2:29]1)=[O:15])=[O:2])[C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1

참가 물질

8

반응물 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 31268PyrrolidineHCID 757711-HydroxybenzotriazoleHCID 1112081-benzyl hydrogen (R)-pyrrolidine-1,2-dicarboxylate

생성물 1

HCID 667614(R)-Benzyl 2-(pyrrolidine-1-carbonyl)pyrrolidine-1-carboxylate

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 516892Sodium Bicarbonate용매

실험 절차

A mixture of (+)-carbobenzyloxy-D-proline (1.5 g, 6 mmol), EDAC (2.3 g, 12 mmol), HOBt (800 mg, 6 mmol), TEA (1.5 mL) and pyrrolidine (853 mg, 12 mmol) in DMF (20 mL) was stirred at rt for 18 hours. The reaction was diluted with water and sodium bicarbonate, extracted with DCM (3×). The combined DCM was concentrated and purified on a silica gel column to give (R)-2-(pyrrolidine-1-carbonyl)-pyrrolidine-1-carboxylic acid benzyl ester.

후처리

  1. extractionextracted with DCM (3×)
  2. concentrationThe combined DCM was concentrated
  3. custompurified on a silica gel column

출처 및 근거

ORD 기록
ord-5f9f8fbc16794791adcba827f64da92a
출처 데이터셋
uspto-grants-2003_07
특허 번호
US06599902B2

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