O-benzyl-L-serine → N-[(S,S)-2,4-dibenzyl-4-carboxybutyryl]-O-benzyl-(L)-serine

HRID 374320

반응식

HRID 374320 반응식
[CH2:1]([C@@H:8]1[CH2:14][C@@H:13]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:12](=[O:22])[O:11][C:9]1=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:23]([O:30][CH2:31][C@@H:32]([C:34]([OH:36])=[O:35])[NH2:33])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1>C(Cl)Cl.CCOCC>[CH2:15]([C@H:13]([CH2:14][C@@H:8]([CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)[C:9]([OH:11])=[O:10])[C:12]([NH:33][C@H:32]([C:34]([OH:36])=[O:35])[CH2:31][O:30][CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)=[O:22])[C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1

참가 물질

5

반응물 2

HCID 78457O-benzyl-L-serineHCID 14557658(S,S)-2,4-dibenzylglutaric anhydride

생성물 1

HCID 14557690N-[(S,S)-2,4-dibenzyl-4-carboxybutyryl]-O-benzyl-(L)-serine

시약·촉매·용매 2

HCID 3283Diethyl Ether용매HCID 6344Dichloromethane용매

실험 절차

A solution of 0.5 g of (S,S)-2,4-dibenzylglutaric anhydride and 0.82 g of O-benzyl-(L)-serine 1,2:5,6-di-O-isopropylidene-D-glucofuranos-3-yl ester in 10 ml of methylene chloride is stirred at room temperature overnight. The solution is diluted with ether, washed with 1N hydrochloric acid, water, dried (Na2SO4), filtered and concentrated to give N-[(S,S)-2,4-dibenzyl-4-carboxybutyryl]-O-benzyl-(L)-serine 1,2:5,6-di-O-isopropylidene-D-glucofuranos-3-yl ester melting at 55°-58°; [ ]D =+2.2°.

후처리

  1. washwashed with 1N hydrochloric acid, water
  2. dry with materialdried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-4581303663804d50a0a021c4f953fe56
출처 데이터셋
uspto-grants-1992_11
특허 번호
US05166212

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