6-amino-3,3-dimethyl-8-[(2-methylphenyl)imino]-4,8-dihydro-1H,3H-thiopyrano[3,4-c]pyran-5-carbonitrile 在
sodium ethanolate 作用下,
以
甲醇 、
甲苯 为溶剂,
反应 1.5h,
生成
3,3-dimethyl-8-methylamino-6-[(2-methylphenyl)amino]-3,4-dihydro-1H-pyrano[3,4-c]pyridine-5-carbonitrile