1: diethyl-1,4-dihydro-2,6-dimethyl-3,5-pyridine dicarboxylate With sodium hydride in tetrahydrofuran T=0 - 20°C; Inert atmosphere; 2: methyl 4-toluenesulfonate in tetrahydrofuran T=20°C; 2.5 h; Inert atmosphere;
参考文献
Webb, Jonathan D.; Laberge, Veronique S.; Geier, Stephen J.; Stephane; Crudden, Cathleen M.
Chemistry - A European Journal, 2010 , vol. 16, # 16 p. 4895 - 4902