An angiotensin II antagonist of the formula: ##STR1## in which: R.sub.p.sup.1 represents hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl or C.sub.1 -C.sub.6 alkanoyl; R.sub.p.sup.2 represents a single bond, C.sub.1 -C.sub.4 alkylene or C.sub.1 -C.sub.4 alkylidene; R.sub.p.sup.3 and R.sub.p.sup.4 are independently selected from the group consisting of hydrogen and C.sub.1 -C.sub.6 alkyl; R.sub.p.sup.5 represents hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl, naphthyl, benzyl, diphenylmethyl, naphthylmethyl, alkanoyloxyalkyl, cycloalkanecarbonyloxyalkyl, alkoxycarbonyloxyalkyl, cycloalkyloxycarbonyloxyalkyl, (5-phenyl-2-oxo-1,3-dioxolen-4-yl)methyl, (5-alkyl-2-oxo-1,3-dioxolen-4-yl)methyl or phthalaidyl; R.sub.p.sup.6 represents a carboxy or a tetrazol-5-yl; and X.sub.p represents an oxygen or sulfur, and pharmaceutically acceptable salts thereof. The compounds have hypotensive activity and can thus be used for the treatment and prophylaxis of hypertension.
一种
血管紧张素II受体拮抗剂的
化学式:##STR1## 其中:R.sub.p.sup.1代表氢,C.sub.1-C.sub.6烷基,C.sub.3-C.sub.6环烷基或C.sub.1-C.sub.6酰基;R.sub.p.sup.2代表单键,C.sub.1-C.sub.4烷基或C.sub.1-C.sub.4烷基亚甲基;R.sub.p.sup.3和R.sub.p.sup.4分别选择自羟基和C.sub.1-C.sub.6烷基的群;R.sub.p.sup.5代表氢,C.sub.1-C.sub.4烷基,苯基,
萘基,苄基,二苯甲基,
萘甲基,烷酰氧烷基,环烷基羰基氧烷基,烷氧羰基氧烷基,环烷氧羰基氧烷基,(5-苯基-2-氧代-1,3-二氧杂
环戊二烯-4-基)甲基,(5-烷基-2-氧代-1,3-二氧杂
环戊二烯-4-基)甲基或
邻苯二甲酰基;R.sub.p.sup.6代表羧基或
四唑-5-基;X.sub.p代表氧或
硫,以及其药学上可接受的盐。这些化合物具有降压活性,因此可用于治疗和预防高血压。