3-Ethyl-3-methyl-8-morpholin-4-yl-6-thioxo-3,4,6,7-tetrahydro-1H-pyrano[3,4-c]pyridine-5-carbonitrile 、 alkaline earth salt of/the/ methylsulfuric acid 在
sodium ethanolate 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以79%的产率得到3-Ethyl-3-methyl-6-methylsulfanyl-8-morpholin-4-yl-3,4-dihydro-1H-pyrano[3,4-c]pyridine-5-carbonitrile