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Penicillin G → 4-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate

HRID 1421792
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HRID 1421792 반응식
C1(C)C=CC(S(O)(=O)=[O:8])=CC=1.[OH:12][CH:13]([N:26]1[C:32](=[O:33])[C@@H:31]2[C@H:27]1[S:28][C:29]([CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1)=[N:30]2)[C:14]([O:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([O:24][CH3:25])=[CH:20][CH:19]=1)=[O:15].CC1(C)S[C@@H]2[C@H](NC(CC3C=CC=CC=3)=O)C(=O)N2[C@H]1C(O)=O.CC1(C)S[C@@H]2[C@H](NC(COC3C=CC=CC=3)=O)C(=O)N2[C@H]1C(O)=O>O.ClCCl.CC(C)=O>[OH:12][CH:13]([N:26]1[C@H:27]([SH:28])[C@H:31]([NH:30][C:29](=[O:8])[CH2:34][C:35]2[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=2)[C:32]1=[O:33])[C:14]([O:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([O:24][CH3:25])=[CH:20][CH:19]=1)=[O:15]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 5904Penicillin GHCID 6101p-Toluenesulfonic acidHCID 6869Penicillin VHCID 536561234-Methoxybenzyl (RS)-2-hydroxy-2-[(lR,5R)-3-benzyl-4-thia-2,6-diazabicyclo[3.2.0)hept-2-en-7-on-6-yl]acetate

생성물 1

HCID 544549564-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate

시약·촉매·용매

3
HCID 180Acetone용매HCID 962Water용매HCID 6344Dichloromethane용매2회

실험 절차

Toluene-4-sulphonic acid (6.0 g, 31.5 mmol) in water (15 ml) was added to a solution of 4-methoxybenzyl (2RS)-2-hydroxy-2-[(1R,5R)-3-benzyl-4-thia-2,6-diazabicyclo [3.2.0]hept-2-en-7-on-6-yl]acetate (7.42 g, 18.0 mmol) prepared from Penicillin G as described for the benzhydryl ester derived from Penicillin V, S. Yamamoto, N. Haga, T. Aoki, S. Hayashi, H. Tanida, and W. Nagata, Heterocycles, 1977, 8, 283) in dichloromethane (30 ml) and acetone (30 ml). After stirring for 2.5 h at room temperature, the reaction mixture was diluted with dichloromethane, washed with water (×2), dried and concentrated in vacuo to yield crude 4-methoxybenzyl (2RS)-2-hydroxy-2-[(3R,4R)-4-mercapto-3-phenylacetamidoazetidin-2-on-1-yl]acetate as a yellow foam.

후처리

  1. washwashed with water (×2)
  2. customdried
  3. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-4ff4aed866064e98a99f3a71042e1e7c
출처 데이터셋
uspto-grants-2000_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06077952

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