2-氨基-5-苯基-1,3,4-噻二唑 、
3-(p-methylphenyl)-2,4-dicarboethoxy-5-hydroxy-5-methylcyclohexanone 在
potassium methanolate 作用下,
反应 10.0h,
以55%的产率得到2-Ethyl-7-hydroxy-7-methyl-4-oxo-5-p-tolyl-5,6,7,8-tetrahydro-4H-1-thia-3,3a,9-triaza-cyclopenta[b]naphthalene-6-carboxylic acid ethyl ester