2-氨基-5-苯基-1,3,4-噻二唑 、
3-(p-methoxyphenyl)-2,4-dicaroethoxy-5-hydroxy-5-methylcyclohexanone 在
potassium methanolate 作用下,
反应 10.0h,
以50%的产率得到2-Ethyl-7-hydroxy-5-(4-methoxy-phenyl)-7-methyl-4-oxo-5,6,7,8-tetrahydro-4H-1-thia-3,3a,9-triaza-cyclopenta[b]naphthalene-6-carboxylic acid ethyl ester