Ethyl 1-[5-cyano-3-[(3-ethyl-4-oxo-2-sulfanylidene-thiazolidin-5-ylidene)methyl]-4-methyl-6-oxo-1-propyl-(pyridin-2-yl)]piperidine-3-carboxylate

(氯甲酰基)乙酸乙酯

1,2-苯二胺

乙醇酸乙酯

氯乙酸甲酯