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ethyl 5-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate → ethyl 5-((2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate

HRID 870866
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HRID 870866 반응식
C([O:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]1[O:22][N:21]=[C:20]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:19]=1)C1C=CC=CC=1>CO.C1COCC1.[Pd]>[OH:8][N:9]1[C:15](=[O:16])[N:14]2[CH2:17][C@H:10]1[CH2:11][CH2:12][C@H:13]2[C:18]1[O:22][N:21]=[C:20]([C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:19]=1
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5

반응물 1

HCID 86701408ethyl 5-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate

생성물 1

HCID 86701411ethyl 5-((2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate수율 35%

시약·촉매·용매 3

HCID 23938Palladium촉매HCID 887Methanol용매HCID 8028Tetrahydrofuran
용매

실험 절차

To a solution of ethyl 5-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate (323 mg, 0.867 mmol) in MeOH (6.0 mL) and THF (3.0 mL) was added 10% Pd/C (18.46 mg, 0.017 mmol). The reaction mixture was stirred under hydrogen balloon at rt for 1 h. The reaction mixture was then filtered and concentrated. The residue was purified by silica gel column chromatography (0 to 5% MeOH/DCM) to afford ethyl 5-((2S,5R)-6-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]octan-2-yl)-1,2,4-oxadiazole-3-carboxylate (85 mg, 35%).

후처리

  1. filtrationThe reaction mixture was then filtered
  2. concentrationconcentrated
  3. customThe residue was purified by silica gel column chromatography (0 to 5% MeOH/DCM)

출처 및 근거

ORD 기록
ord-f179370641134ec5aed1f49913df76dd
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08969570B2

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