2-[(ethoxycarbonyl)-aminocarbothioyl]amino-4,7-dihydro-spiro[benzo[b]thiophene-6(5H),1'-cyclohexane]-3-carboxylic acid ethyl ester 在
sodium ethanolate 作用下,
以
乙醇 为溶剂,
以0.61 g的产率得到3-(ethoxycarbonyl)amino-2-thioxo-4-oxo-1,2,3,4,5,8-hexahydro-spirobenzo[b]thieno[2,3-d]-pyrimidine-7(6H),1'-cyclohexane