Hydrogen chloride-ethyl acetate → HCID 13622606, compound
Reaction equation
C(O[CH:6]([N:38]=C=O)[CH2:7][CH2:8][CH2:9][CH2:10][C@H:11]([NH:17][C@@H:18]1[C:24](=[O:25])[N:23]([CH2:26][C:27]([O:29]C(C)(C)C)=[O:28])[C:22]2[CH:34]=[CH:35][CH:36]=[CH:37][C:21]=2[O:20][CH2:19]1)[C:12]([O:14][CH2:15][CH3:16])=[O:13])(C)(C)C.C(OCC)(=O)C.[ClH:47]>>[ClH:47].[ClH:47].[NH2:38][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][C@H:11]([NH:17][C@@H:18]1[C:24](=[O:25])[N:23]([CH2:26][C:27]([OH:29])=[O:28])[C:22]2[CH:34]=[CH:35][CH:36]=[CH:37][C:21]=2[O:20][CH2:19]1)[C:12]([O:14][CH2:15][CH3:16])=[O:13]Participants
3
Procedure
A solution of tert-butyl 3(S)-[6-tert-butoxy-carbonylamino-1(S)-ethoxycarbonylhexyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate (0.5 g) in 5N hydrogen chloride-ethyl acetate solution (10 ml) is allowed to stand for 3.5 hours at room temperature. Petroleum ether (80 ml) is added to the solution, and the resulting precipitate is collected and dried in vacuo to give 3(S)-[6-amino-1(S)-ethoxycarbonylhexyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetic acid dihydrochloride (0.4 g) as colorless powder.
Workup
- customthe resulting precipitate is collected
- customdried in vacuo
Sources & evidence
- ORD record
- ord-a7661440d5b14695aafc400d02340476
- Source dataset
- uspto-grants-1985_10
- Patent number
- US04548932
Reaction notes
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