2,4-二硝基苯甲酸 、 4-(2,4-dinitrobenzoyloxy)-5-hydroxy-2,6,6-trimethyl-2-cyclohepten-1-one 、 5-(2,4-Dinitrobenzoyloxy)-4-hydroxy-2,6,6-trimethyl-2-cyclohepten-1-one 在
乙酸乙酯 、
正己烷 作用下,
以
ethyl acetate n-hexane 为溶剂,
以to obtain 1.65 g (26%) of 4-(2,4-diaminobenzoyloxy)-5-hydroxy-2,6,6-trimethyl-2-cyclohepten-1-one (AU242) as a brown powder的产率得到4-(2,4-diaminobenzoyloxy)-5-hydroxy-2,6,6-trimethyl-2-cyclohepten-1-one