2-Oxo-2,3,4,5,6,7-hexahydro-benzothiazole-4-carboxylic acid methyl ester 、
potassium carbamate 、
O,O-二乙基硫代磷酰氯 在
silica gel 、 cyclohexane, ethyl acetate 作用下,
以
丙酮 为溶剂,
反应 19.0h,
以yielded 1.5 g of 2-(diethoxythiophosphoryloxy)-4-carbomethoxy-4,5,6,7-tetrahydrobenzothiazole with a refractive index nD26 = 1.5261的产率得到2-(diethoxythiophosphoryloxy)-4-carbomethoxy-4,5,6,7-tetrahydrobenzothiazole