p-Toluenesulfonic acid → HCID 67919657, 화합물

HRID 1461605노트

반응식

HRID 1461605 반응식
[OH:1][CH2:2][C:3]([C@H:5]1[N:8]([CH:9]([CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=2)[CH2:10][C:11]2[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[CH:13][CH:12]=2)[C:7](=[O:28])[C@@H:6]1[C@H:29]([O:31][C:32]([O:34][CH2:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)=[O:33])[CH3:30])=[CH2:4].[O:42]1[CH:47]=[CH:46][CH2:45][CH2:44][CH2:43]1.C1(C)C=CC(S(O)(=O)=O)=CC=1>ClCCl.C(OCC)(=O)C>[O:42]1[CH2:47][CH2:46][CH2:45][CH2:44][CH:43]1[O:1][CH2:2][C:3]([C@H:5]1[N:8]([CH:9]([CH2:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=2)[CH2:10][C:11]2[CH:12]=[CH:13][C:14]([O:17][CH3:18])=[CH:15][CH:16]=2)[C:7](=[O:28])[C@@H:6]1[C@H:29]([O:31][C:32]([O:34][CH2:35][C:36]1[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1)=[O:33])[CH3:30])=[CH2:4]

참가 물질

6

반응물 3

HCID 6101p-Toluenesulfonic acidHCID 80803,4-dihydro-2H-pyranHCID 67796345HCID 67796345, 화합물

생성물 1

HCID 67919657HCID 67919657, 화합물

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 8857Ethyl Acetate용매

실험 절차

A solution of (3S,4S)-4-(1-hydroxymethylethenyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di(p-anisyl)methyl-2-azetidinone (106 mg) and dihydropyran (25 mg) in dry dichloromethane (1 mg) was treated with p-toluenesulfonic acid (1 mg) at room temperature for 50 minutes. The reaction mixture was diluted with ethyl acetate, washed with brine and dried over anhydrous sodium sulfate. Filtration and concentration of the filtrate in vacuo gave an oily residue, which was purified by thin-layer chromatography (SiO2) to yield (3S,4S)-4-(1-tetrahydropyranyloxymethylethenyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di(p-anisyl)methyl-2-azetidinone.

후처리

  1. washwashed with brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. filtrationFiltration and concentration of the filtrate in vacuo
  4. customgave an oily residue, which
  5. customwas purified by thin-layer chromatography (SiO2)

출처 및 근거

ORD 기록
ord-e97ffd7ebb02439398bb65c7f5d71fa5
출처 데이터셋
uspto-grants-1991_12
특허 번호
US05075435

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