Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 each independently represent hydrogen, C.sub.1 -C.sub.10 -alkyl, adamantyl-(C.sub.1 -C.sub.4 -alkyl) or (C.sub.2 -C.sub.6 -alkanoyloxy)-(C.sub.1 -C.sub.4 -alkyl), and pharmaceutically acceptable salts thereof possess antihypertensive activity and can be used as theraputic or prophylactic agents in pharmaceutical preparations. Intermediates for the production of such compounds are also provided.
该公式化合物的化合物##STR1##其中R.sup.1和R.sup.2各自独立地代表氢,C.sub.1 -C.sub.10 -烷基,
戊二醇基-(C.sub.1 -C.sub.4 -烷基)或(C.sub.2 -C.sub.6 -辛酰氧基)-(C.sub.1 -C.sub.4 -烷基),及其药学上可接受的盐具有降压活性,并可用作药物配制品中的治疗或预防剂。还提供了用于制备这种化合物的中间体。