1-((10-Chloro-4-oxo-3-phenyl-4H-pyrido(2,1-a)phthalazin-1-yl)carbonyl)-3-methoxyazetidine 110924-83-9 Azetidine, 1-((10-chloro-4-oxo-3-phenyl-4H-pyrido(2,1-a)phthalazin-1-yl)carbonyl)-3-methoxy-