上游原料
Benzaldehyde;Benzoic aldehyde;Phenylmethanal2-(chloromethyl)-1,3-difluorobenzeneethyl (E)-2-cyano-3-ethoxy-2-propenoate；(E)-ethyl 2-cyano-3-ethoxyacrylatebenzaldehyde N-methylhydrazoneethyl (E)-2-cyano-3-{1-methyl-2-[(E)-phenylmethylidene]hydrazino}-2-propenoateethyl 3-amino-1-methyl-1H-pyrazole-4-carboxylate2-methyl-2,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
