Provided are novel cyclopentano-1,2,3,4-tetrahydroisoquinolines of the formula ##SPC1## Wherein R and R.sub.1 are the same or different lower alkyl groups, R.sub.2 is hydrogen or a lower alkyl group, m is an integer from 1 to 2, n is an integer from 1 to 2 and m + n equals 3, and acid addition salts thereof, processes for making the compounds and pharmaceutical compositions containing one or more of the compounds useful as hypotensive agents. Also provided are intermediates of the formula ##SPC2## Wherein R and R.sub.1 are the same or different lower alkyl groups and R.sub.3 is hydrogen, CHO--, ##EQU1## wherein R.sub.2 is hydrogen or a lower alkyl group.
提供了式子为##
SPC1##的新型
环戊烷-1,2,3,4-
四氢异喹啉,其中R和R.sub.1是相同或不同的低碳基团,R.sub.2是氢或低碳基团,m是1到2的整数,n是1到2的整数,且m + n等于3,以及其酸盐加成物,制备该化合物的过程和含有一种或多种该化合物的药物组合物,用作降压剂。还提供了式子为##
SPC2##的中间体,其中R和R.sub.1是相同或不同的低碳基团,R.sub.3是氢,CHO--,##EQU1##其中R.sub.2是氢或低碳基团。