Angiotensin II receptor antagonists having the formula:
which are useful in regulating hypertension and in the treatment of congestive heart failure, renal failure, and glaucoma, pharmaceutical compositions including these antagonists, and methods of using these compounds to product angiotensin II receptor antagonism in mammals.
式的血管紧张素 II 受体拮抗剂:
用于调节高血压和治疗充血性心力衰竭、肾功能衰竭和青光眼的血管紧张素 II 受体拮抗剂,包括这些拮抗剂的药物组合物,以及使用这些化合物在哺乳动物体内产生血管紧张素 II 受体拮抗作用的方法。
This invention relates to a process for preparing the compound having the formula ##STR1## which comprises i) heating the compound of formula ##STR2## wherein R.sup.3 is R.sup.4 or benzyl and R.sup.4 is R.sup.5 C(.dbd.O), R.sup.5 C(.dbd.O) or R.sup.5 SO.sub.2 wherein R.sup.5 is (C.sub.1 -C.sub.6)alkyl or (C.sub.6 -C.sub.10)aryl(C.sub.1 -C.sub.6)alkyl; at an elevated temperature in the presence of a base with the proviso that when R.sup.3 in the resultant product is R.sup.4 said product is ii) further treated with an aqueous mineral acid at an elevated temperature followed by iii) treatment of the product of ii) with a) a benzylating agent in the presence of a base or b) benzaldohyde in the presence of a reducing agent and an acid.