10-((2,3-Dimethyl-1-oxopentyl)amino)-4-oxo-4H-pyrimido(1,2-c)quinazoline-3-carboxylic acid 4H-Pyrimido(1,2-c)quinazoline-3-carboxylic acid, 10-((2,3-dimethyl-1-oxopentyl)amino)-4-oxo- 79690-61-2 FR 50948 FR-50948