Hydrogen chloride-ethyl acetate → 1055879-22-5
Reaction equation
C(OC([N:8]1[CH2:14][C:13]2[CH:15]=[CH:16][CH:17]=[C:18]([C:19]([OH:21])=[O:20])[C:12]=2[O:11][CH2:10][CH2:9]1)=O)(C)(C)C.C(OCC)(=O)C.[ClH:28]>C(OCC)(=O)C>[ClH:28].[O:11]1[C:12]2[C:18]([C:19]([OH:21])=[O:20])=[CH:17][CH:16]=[CH:15][C:13]=2[CH2:14][NH:8][CH2:9][CH2:10]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
4-(tert-Butoxycarbonyl)-2,3,4,5-tetrahydro-1,4-benzoxazepine-9-carboxylic acid (110 mg, 0.375 mmol), ethyl acetate (1 ml) and 4N hydrogen chloride-ethyl acetate solution (2 ml) were stirred at room temperature for 1 hr, and the solvent was evaporated under reduced pressure. The residue was recrystallized from a mixed solvent of methanol and ether to give the desired product (72.0 mg, 83.6%) as a solid.
Workup
- customthe solvent was evaporated under reduced pressure
- customThe residue was recrystallized from a mixed solvent of methanol and ether
Sources & evidence
- ORD record
- ord-1ef429158c354ad8ac7416bb5d53c134
- Source dataset
- uspto-grants-2012_08
- Patent number
- US08247403B2
Reaction notes
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