171667-99-5 Butanoic acid, 4-((4,7-dihydro-5-methyl-7-phenyl-(1,2,4)triazolo(1,5-a)pyrimidin-2-yl)amino)-4-oxo- N-(5-Methyl-7-phenyl-4,7-dihydro-1,2,4-triazolo(1,5-a)pyrimidin-2-yl)succinaminic acid