(2S,5R)-N-[(Z)-N-hydroxy-C-methylcarbonimidoyl]-7-oxo-6-phenylmethoxy-1,6-diazabicyclo[3.2.1]octane-2-carboxamide → (2S,5R)-6-(benzyloxy)-2-(3-methyl-1,2,4-oxadiazol-5-yl)-1,6-diazabicyclo[3.2.1]octan-7-one
反応式
[CH2:1]([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]([NH:20]/[C:21](=[N:23]\[OH:24])/[CH3:22])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>CN(C=O)C>[CH2:1]([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:24][N:23]=[C:21]([CH3:22])[N:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
3
実験手順
A solution of (2S,5R)-6-(benzyloxy)-N—((Z)-1-(hydroxyimino)ethyl)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide (174 mg, 0.524 mmol) in DMF (2 mL) was heated at 80° C. for 2-3 hrs. The solvent was then concentrated in vacuum and the residue was purified by silica gel column chromatography (0 to 5% MeOH/DCM) to provide (2S,5R)-6-(benzyloxy)-2-(3-methyl-1,2,4-oxadiazol-5-yl)-1,6-diazabicyclo[3.2.1]octan-7-one (130 mg, 79%) as a white solid.