The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a)
wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefore.
本发明提供了一种商业生产以下式子(III-a)所代表的1,2-
二氢吡啶-2-酮化合物的方法,其中环A代表一个可选取代的2-
吡啶基团,环B代表一个可选取代的苯基团,环C代表一个可选取代的苯基团。此外,本发明还提供了3-(2-
氰基苯基)-5-(2-
吡啶基)-1-苯基-1,2-
二氢吡啶-2-酮的晶体及其生产工艺。