This invention provides a piperidine compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or trihalomethyl, R.sup.2 is hydrogen or protected carboxy, R.sup.3 is heterocyclic group or aryl which may be halogen substituted, and X is --S--, ##STR2## --O--, --NH-- or lower alkylene which may be hydroxy substituted, and pharmaceutically acceptable salt thereof, These compounds possess hypotensive activity and are useful as anti-hypertensive agents. The invention further relates to processes for the preparation of these compounds and pharmaceutical compositions comprising compounds of the above formula.
本发明提供了一种
哌啶化合物,其
化学式为:##STR1##其中R.sup.1是氢或三卤甲基,R.sup.2是氢或受保护的羧基,R.sup.3是杂环基或芳基,可能被卤素取代,X是--S--,##STR2##--O--,--NH--或较低的烷基,可能被羟基取代,以及其药学上可接受的盐。这些化合物具有降压活性,并可用作降压剂。本发明还涉及制备这些化合物的方法和包含上述化合物的药物组合物。