[1-((S)-2-tert-butoxycarbonylamino-3,3-dimethyl-butyryl)-piperidin-4-yl]-(5-methoxy-4-oxo-4H-pyran-2-ylmethyl)-carbamic acid 2,2,2-trichloro-ethyl ester 在
盐酸 作用下,
以
乙酸乙酯 为溶剂,
以100%的产率得到[1-((S)-2-amino-3,3-dimethyl-butyryl)-piperidin-4-yl]-(5-methoxy-4-oxo-4H-pyran-2-ylmethyl)-carbamic acid 2,2,2-trichloro-ethyl ester hydrochloride