2,5-dimethyl-3,4-dicyanopyrrole

4-(hydroxyimino-methyl)-2,5-dimethyl-pyrrole-3-carbonitrile

4-cyano-2,7-dimethyl-4,5-dihydro-1H-azepine-3,6-dicarboxylic acid diethyl ester

乙醇

diethyl 4-chloromethyl-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate