3-imidazolylalkyl-, triazolylalkyl-, pyridinylalkyl-1,2,3- benzotriazin- 4(3H)-ones and derivatives thereof

摘要

Novel 3-heteroarylalkyl-1,2,3-benzotriazin-4(3H)-ones, having the structural formula: ##STR1## wherein A is a divalent moiety of the formula: ##STR2## wherein n is an integer from 3 to 10, inclusive; R.sub. 1 and R.sub.2 may be the same or different and may be selected from the group consisting of hydrogen, halogen, trifluoromethyl, alkoxy having from one to four carbon atoms, alkyl having from one to four carbon atoms, nitro and amino; wherein Heteroaryl is ##STR3## wherein R.sub.3 and R. sub.4 may be hydrogen, alkyl having from one to four carbon atoms or phenyl and X is CH or N; together with the pharmaceutically acceptable salts thereof; processes for their preparation and their use in treating prostaglandin-related vascular disorders including ischemic heart disease, transient ischemic attack, thrombosis, migraine and hypertension.