Patent US4236003 - V-Triazolyl-[4,5-d]-pyrimidH. - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsNew v-Triazolyl-[4,5-d]-pyrimidines of the formula ##STR1## wherein Q and Q1 independently of one another are a secondary or tertiary amino radicals and X, X1 and X2 are certain non-chromophoric substituents, their preparation and their use fo