2,2-Dimethyl-4-piperidinobutyric acid hydrochloride 、
7-(1,2-Dimethyl-heptyl)-4,4-dimethyl-1,4-dihydro-3H-thieno[3,4-c]chromen-9-ol 、
N,N'-二环己基碳二亚胺 以
二氯甲烷 为溶剂,
以to produce 1,3-dihydro-4,4-dimethyl-7-(3-methyl-2-octyl)-9-[2,2-dimethyl-4-(piperidino)butyryloxy]-4H-thieno[3,4-c][1]benzopyran hydrochloride的产率得到1,3-dihydro-4,4-dimethyl-7-(3-methyl-2-octyl)-9-[2,2-dimethyl-4-(piperidino)butyryloxy]-4H-thieno[3,4-c][1]benzopyran hydrochloride