... 3H—1,2,3-triazolo[4,5-d] pyrimidine-7-carbonitrile and Related Compounds TAKEO HIGASHINOF” TATSUHIKO ... 3a to 3d) in good yields (see Table I). 1) Part V: Higashino, T. Katori, H. Kawaraya, and ... 3) E. Hayashi, T. Higashino, and S. Suzuki, Yakugaku Zasshi, 98, 981 (1978). ...