吗啉-4-基(吡啶-3-基)乙腈

ethyl (E)-4-bromo-3-methoxy-2-butenoate

ethyl (E)-δ-cyano-δ-(3'-pyridyl)-β-methoxy-δ-(4-morpholino)pent-2-enoate

烟酸乙酯

methyl 4-methylsulfanyl-2-oxo-6-pyrid-3-yl-2H-pyran-3-carboxylate