Sodium Carbonate → N-[4-ethoxycarbonyl-(S,S)-2,4-di-benzylbutyryl]-O-benzyl-(L)-serine

HRID 374314

반응식

HRID 374314 반응식
[CH2:1]([O:8][CH2:9][C@@H:10]([C:12]([OH:14])=[O:13])[NH2:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Na+].[Na+].[CH2:21]([O:23][C:24]([C@H:26]([CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)[CH2:27][C@@H:28]([CH2:32][C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)[C:29](Cl)=[O:30])=[O:25])[CH3:22]>O>[CH2:21]([O:23][C:24]([C@H:26]([CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)[CH2:27][C@@H:28]([CH2:32][C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1)[C:29]([NH:11][C@H:10]([C:12]([OH:14])=[O:13])[CH2:9][O:8][CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)=[O:30])=[O:25])[CH3:22]

참가 물질

5

반응물 3

HCID 10340Sodium CarbonateHCID 78457O-benzyl-L-serineHCID 149971304-ethoxycarbonyl-(S,S)-2,4-dibenzylbutyryl chloride

생성물 1

HCID 14997131N-[4-ethoxycarbonyl-(S,S)-2,4-di-benzylbutyryl]-O-benzyl-(L)-serine

시약·촉매·용매 1

HCID 962Water용매

실험 절차

A solution of 3.3 g of O-benzyl-(S)-serine and 1.8 g of sodium carbonate in 30 ml of water at 0° is added to 2.2 g of 4-ethoxycarbonyl-(S,S)-2,4-dibenzylbutyryl chloride and the mixture is stirred at room temperature for 4 hours. The mixture is extracted with ether, and the aqueous layer is acidified with 2N hydrochloric acid. The acidic solution is extracted with ethyl acetate, washed with saturated brine, dried (magnesium sulfate), filtered and concentrated to yield N-[4-ethoxycarbonyl-(S,S)-2,4-di-benzylbutyryl]-O-benzyl-(L)-serine.

후처리

  1. extractionThe mixture is extracted with ether
  2. extractionThe acidic solution is extracted with ethyl acetate
  3. washwashed with saturated brine
  4. dry with materialdried (magnesium sulfate)
  5. filtrationfiltered
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-21cdc161b6b24cbbb65e6134b73769c9
출처 데이터셋
uspto-grants-1992_11
특허 번호
US05166212

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