Selective thromboxane synthetase inhibitors and antihypertensive agents. New derivatives of 4-hydrazino-5H-pyridazino[4,5-b]indole, 4-hydrazinotriazino[4,5-a]indole, and related compounds
A series of newderivatives of 4-hydrazino-5H-pyridazino[4,5-b]indole (5) and 4-hydrazinopyridazino[4,5-a]indole (12) have been synthesized to investigate their activities as selective thromboxanesynthetaseinhibitors as well as antihypertensive agents. Several of the prepared compounds were found to be selective thromboxanesynthetaseinhibitors, in concordance with the Gorman model. The most potent