6-hydroxy-2-(p-methoxyphenyl)imidazo[2,1-b]benzothiazole 、
mono-p-methoxybenzyl malonate 生成 6-carboxyacetoxy-2-(p-methoxyphenyl)imidazo[2,1-b]benzothiazole hydrochloride 、
2-(p-methoxyphenyl)-6-(p-methoxybenzyloxycarbonylacetoxy)imidazo[2,1-b]benzothiazole