2-[1-(3-Nitro-phenyl)-meth-(E)-ylidene]-3-oxo-butyric acid 2-(methyl-thiophen-2-ylmethyl-amino)-ethyl ester 、 3-(1-benzylpiperidin-3-yl)amidinoacetate acetic acid salt 在
sodium methylate 作用下,
以
异丙醇 为溶剂,
以72%的产率得到2-Amino-6-methyl-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-(1-benzyl-piperidin-3-yl) ester 5-[2-(methyl-thiophen-2-ylmethyl-amino)-ethyl] ester