反应详情

To tert-butyl (6R,7R)-7-(4-chloro-3-fluorophenyl)-6-({[(1-methylethoxy)acetyl]amino}methyl)-1,4-oxazepane-4-carboxylate (384 mg) was added 4.0 M hydrogen chloride-ethyl acetate solution (6.28 ml), and the mixture was stirred at room temperature for 1 hr. The residue obtained by concentration under reduced pressure was crystallized from ethanol-hexane solvent to give the title compound (153.4 mg).

1. customThe residue obtained by concentration under reduced pressure
2. customwas crystallized from ethanol-hexane solvent