abstract |
Triazolopyridazine compounds such as 8-methyl-6-morpholino-striazolo(4,3-b)pyridazine or 3,8-dimethyl-6-piperidino-striazolo(4,3-b)pyridazine are prepared by the reaction of a 3hydrazino pyridazine with a lower alkanoic acid. The compounds are useful as hypotensive agents, and certain of the compounds are also active as bronchodilators. |