4-nitrobenzyl 2-diazo-4-[(2R,3S)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate → 4-nitrobenzyl(2R,5R,6S)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate

HRID 235745

반응식

HRID 235745 반응식
[N+](=[C:3]([C:17](=[O:41])[CH2:18][C@@H:19]1[C@@H:22]([C:23]([CH3:39])([O:25][C:26]([O:28][CH2:29][C:30]2[CH:35]=[CH:34][C:33]([N+:36]([O-:38])=[O:37])=[CH:32][CH:31]=2)=[O:27])[CH3:24])[C:21](=[O:40])[NH:20]1)[C:4]([O:6][CH2:7][C:8]1[CH:13]=[CH:12][C:11]([N+:14]([O-:16])=[O:15])=[CH:10][CH:9]=1)=[O:5])=[N-]>C1C=CC=CC=1.C([O-])(=O)C.[Rh+2].C([O-])(=O)C>[O:41]=[C:17]1[CH2:18][C@H:19]2[N:20]([C:21](=[O:40])[C@@H:22]2[C:23]([CH3:39])([O:25][C:26]([O:28][CH2:29][C:30]2[CH:31]=[CH:32][C:33]([N+:36]([O-:38])=[O:37])=[CH:34][CH:35]=2)=[O:27])[CH3:24])[C@H:3]1[C:4]([O:6][CH2:7][C:8]1[CH:9]=[CH:10][C:11]([N+:14]([O-:16])=[O:15])=[CH:12][CH:13]=1)=[O:5]

참가 물질

4

반응물 1

HCID 867388744-nitrobenzyl 2-diazo-4-[(2R,3S)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate

생성물 1

HCID 228231934-nitrobenzyl(2R,5R,6S)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate수율 86.7%

시약·촉매·용매 2

HCID 21674Acetic acid, rhodium(2+) salt촉매HCID 241Benzene용매

실험 절차

A mixture of 4-nitrobenzyl 2-diazo-4-[(2R,3S)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate (58.0 mg) and rhodium (II) acetate (0.1 mg) in benzene (3.4 ml) was refluxed for 30 minutes. After cooling to ambient temperature, the mixture was filtered with a diatomaceous earth and evaporated to give 4-nitrobenzyl (2R,5R,6S)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]-heptane-2-carboxylate (47.8 mg) as an amorphous solid.

후처리

  1. temperaturewas refluxed for 30 minutes
  2. filtrationthe mixture was filtered with a diatomaceous earth
  3. customevaporated

출처 및 근거

ORD 기록
ord-c302a43fedc04fc1856c1bed8824d33b
출처 데이터셋
uspto-grants-1987_02
특허 번호
US04640915

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