2-[methyl(pyridin-3-ylmethyl)amino]ethyl 2-[(3-nitrophenyl)methylidene]-3-oxobutanoate 、 3-(1-benzylpiperidin-3-yl)amidinoacetate acetic acid salt 在
sodium methylate 作用下,
以
异丙醇 为溶剂,
生成 3-O-(1-benzylpiperidin-3-yl) 5-O-[2-[methyl(pyridin-3-ylmethyl)amino]ethyl] 2-amino-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate