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(6R,7R)-2,2-dimethyl-7-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-aza-3-oxabicyclo[4.2.0]octan-8-one → (3R,4R)-4-(2-hydroxyethyl)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]azetidin-2-one

HRID 851419
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인쇄 미리보기

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HRID 851419 반응식
CC1(C)[O:9][CH2:8][CH2:7][C@H:6]2[N:3]1[C:4](=[O:27])[C@H:5]2[C:10]([CH3:26])([O:12][C:13]([O:15][CH2:16][C:17]1[CH:22]=[CH:21][C:20]([N+:23]([O-:25])=[O:24])=[CH:19][CH:18]=1)=[O:14])[CH3:11]>C(O)(=O)C.O>[OH:9][CH2:8][CH2:7][C@H:6]1[NH:3][C:4](=[O:27])[C@H:5]1[C:10]([CH3:26])([O:12][C:13]([O:15][CH2:16][C:17]1[CH:18]=[CH:19][C:20]([N+:23]([O-:25])=[O:24])=[CH:21][CH:22]=1)=[O:14])[CH3:11]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

4

반응물 1

HCID 53638686(6R,7R)-2,2-dimethyl-7-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-aza-3-oxabicyclo[4.2.0]octan-8-one

생성물 1

HCID 53711022(3R,4R)-4-(2-hydroxyethyl)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]azetidin-2-one수율 84.1%

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 962Water용매

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온도
65 °C

실험 절차

A solution of (6R,7R)-2,2-dimethyl-7-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-aza-3-oxabicyclo[4.2.0]octan-8-one (200 mg) in a mixture of acetic acid (3.2 ml) and water (0.8 ml) was heated at 65° C. for 1 hour. The mixture was cooled to room temperature and evaporated in vacuo. The crystalline residue was washed with ether to give (3R,4R)-4-(2-hydroxyethyl)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]azetidin-2-one (151 mg).

후처리

  1. temperatureThe mixture was cooled to room temperature
  2. customevaporated in vacuo
  3. washThe crystalline residue was washed with ether

출처 및 근거

ORD 기록
ord-e94c6075f34c492b8bd526002f1ac18f
출처 데이터셋
uspto-grants-1983_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04383945

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