Synonyms: N,N-diethyl-2-propyl-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]- 1,5,7,9-tetrazabicyclo[4.3.0]nona-2,4,6,8-tetraen-4-amine;s-triazolo(1,5-a)pyrimidin-5-amine, N,N-diethyl-7-propyl-6- ((2'-(1H-tetrazol-5-yl)(1,1'-biphenyl)-4- yl)methyl)-