Water → tert-butyl 1,3-dioxotetrahydro-1H-oxazolo[3,4-a]pyrazine-7(3H)-carboxylate

HRID 199861노트

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[C:16]([O:17][C:21](=[O:22])[N:23]1[CH:24]([C:36](=[O:37])[OH:38])[CH2:25][N:26]([C:29](=[O:30])[O:31][C:32]([CH3:33])([CH3:34])[CH3:35])[CH2:27][CH2:28]1)([CH3:18])([CH3:19])[CH3:20].[CH2:39]1[O:40][CH2:41][CH2:42][CH2:43]1.[CH3:44][CH2:45][O:46][C:47]([CH3:48])=[O:49].[O:7]=[CH:8][N:9]([CH3:10])[CH3:11].[OH2:50].[S:12]([Cl:13])([Cl:14])=[O:15].[cH:1]1[cH:2][cH:3][n:4][cH:5][cH:6]1>>[C:21]1(=[O:22])[N:23]2[CH:24]([CH2:25][N:26]([C:29](=[O:30])[O:31][C:32]([CH3:33])([CH3:34])[CH3:35])[CH2:27][CH2:28]2)[C:36](=[O:37])[O:38]1