ethyl 4-(4-bromophenyl)-6-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate

4-氯苯甲醛

溴代苯

对甲基苯甲醛

1,1,3,3-tetramethyl-1,3-dihydrobenzo[c][1,2]oxasilole