盐酸 、 4-[3-[[[[3-(1,4-Dioxa-8-azaspiro[4.5]decan-8-yl)propyl]amino]carbonyl]-amino]phenyl]-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid, dimethyl ester 以
二氯甲烷 、
丙酮 为溶剂,
生成
4-[3-[[[[3-(4-Oxo-1-piperidinyl)propyl]amino]carbonyl]amino]phenyl]-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic acid, dimethyl ester hydrochloride