上游原料
1-(Bromomethyl)benzene; Alpha-bromotoluene4-(methylsulfanyl)phenylboronic acid4,5-dibromo-3(2H)-pyridazinone(Z)-2,3-dibromo-4-oxo-2-butenoic acid1-benzylhydrazine2-benzyl-4,5-dibromo-3(2H)-pyridazinone2-benzyl-4-bromo-5-hydroxy-3(2H)-pyridazinone1-benzyl-5-bromo-6-oxo-1,6-dihydro-4-pyridazinyl trifluoromethanesulfonate2-benzyl-4-bromo-5-[4-(methylsulfanyl)phenyl]-3(2H)-pyridazinone2-benzyl-4-bromo-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone
