tert-butyl (6R,7R)-6-(3,4-dichlorophenyl)-7-[(1S)-1,2-dihydroxyethyl]-1,4-oxazepane-4-carboxylate 、
ethanol hydrochloride 在
Ethanol;ethoxyethane;hydrate 作用下,
以
乙醇 为溶剂,
反应 0.25h,
以to give the title compound (340 mg) as colorless crystals的产率得到(1S)-1-[(6R,7R)-6-(3,4-dichlorophenyl)-1,4-oxazepan-7-yl]ethane-1,2-diol monohydrochloride