diethyl t-3,c-4-bis(2-hydroxyphenyl)cyclobutane-r-1,t-2-dicarboxylate

二氧化硒

L-(+)-酒石酸二甲酯

diethyl t-3,c-4-bis(2-hydroxyphenyl)cyclobutane-r-1,t-2-dicarboxylate

硫酸铜