6-chloro-α-hydroxy-N,N-dimethyl-2-(2,5-dimethylthien-3-yl)imidazo[2,1-b]benzothiazole-3-acetamide 、
N,N-二甲基甲酰胺 在
氯化亚砜 作用下,
以
乙醚 、
二氯甲烷 为溶剂,
生成 6-Chloro-N,N-dimethyl-2-(2,5-dimethylthien-3-yl)imidazo[2,1-b]benzothiazole-3-acetamide 、
α,6-dichloro-N,N-dimethyl-2-(2,5-dimethylthien-3-yl)imidazo[2,1-b]benzothiazole-3-acetamide hydrochloride