4-Chloro-N-(4-(5-morpholino-6-oxo-3,6-dihydropyridin-1(2H)-yl)phenyl)butanamide;Butanamide, 4-chloro-N-[4-[5,6-dihydro-3-(4-morpholinyl)-2-oxo-1(2H)-pyridinyl]phenyl]