2-methyl-3-phenyl-4-chloro-3-cyclobutenone

三丁基乙烯基锡

2-hydroxy-4-methyl-3-phenyl-3-cyclobutenone

3-methyl-4-phenyl-3-cyclobutene-1,2-dione 2-ethylene acetal

2-溴-6-硝基甲苯