114431-60-6 6,7-Dihydro-1,3-dimethyl-9-(phenylmethyl)pyrimido(2,1-f)purine-2,4,8(1H,3H,9H)-trione BRN 5642718 Pyrimido(2,1-f)purine-2,4,8(1H,3H,9H)-trione, 6,7-dihydro-1,3-dimethyl-9-(phenylmethyl)-