5-哌啶-1-基-1,3,4-噻二唑-2-胺 、
丁炔二酸二乙酯 以
乙醇 为溶剂,
以Thus 9.8 g (63.7% of the theoretical yield) of ethyl 2-piperidino-7H-1,3,4-thiadiazolo-[3,2-a]-pyrimidin-7-one-5-carboxylate, melting at 125° to 127° C.的产率得到2-Piperidino-7H-1,3,4-thiadiazolo<3,2-a>pyrimidon-7-on-5-carbonsaeureaethylester