上游原料
diethyl 3-methoxypentanedioateethyl 4,6-dihydroxynicotinateethyl 4,6-dichloronicotinateethyl 6-chloro-4-(ethylamino)nicotinate(6-chloro-4-(ethylamino)pyridin-3-yl)methanol6-chloro-4-(ethylamino)nicotinaldehydeethyl 2-(5-amino-2-bromo-4-fluorophenyl)acetate3-(5-amino-2-bromo-4-fluorophenyl)-7-chloro-1-ethyl-1,6-naphthyridin-2(1H)-one3-(5-amino-2-bromo-4-fluorophenyl)-1-ethyl-7-(methylamino)-1,6-naphthyridin-2(1H)-one1-Isocyanatobenzene; phenyl isocyanate; Phenylisocyanate
