Antihypertensive agents

A compound represented by the formulae ##STR24## wherein A is --SO.sub.2 --

• X is Cl or CF.sub.3 ;
• Y is ##STR25## Z is ##STR26## B is ##STR27## R.sup.1 is hydrogen or lower alkyl;
• R.sup.2 and R.sup.5 are independently hydrogen, lower alkyl, phenyl, or phenyl(lower)alkyl;
• R.sup.3 and R.sup.4 are independently hydrogen, lower alkyl, halo lower alkyl, phenyl, or phenyl(lower)alkyl, or R.sup.3 and R.sup.4 taken together with the carbon to which they are attached can form a 5-7 membered cycloalkyl ring;
• R.sup.6 and R.sup.8 are independently hydroxy, alkoxy having from 1 to 8 carbon atoms, L--Q.sub.r --(CH.sub.2).sub.s --O--, wherein L is phenyl, substituted phenyl, 1-naphthyl or 2-naphthyl;
• Q is oxygen or sulfur;
• r is 0 or 1 and s is 0 to 4;
• and wherein the substituents on the substituted phenyl are chosen from group M, wherein M is halogen, hydroxy, trifluoromethyl, alkoxy having from 1 to 6 carbon atoms, alkyl from 1 to 6 carbon atoms, 2-furanyl, 3-furanyl, 2-thienyl, 3-thienyl, and phenyl (which phenyl may be substituted with halogen, hydroxy, trifluoromethyl, alkoxy having from 1 to 6 carbon atoms or alkyl having from 1 to 6 carbon atoms), provided that when s is zero, r is zero;
• --OCH.sub.2 OCO--alkyl wherein the alkyl has from 3 to 8 carbon atoms, --OCH.sub.2 CO--phenyl, wherein the phenyl may be substituted with group M, 1-gylceryl, ##STR28## R.sup.7 is hydrogen, lower alkyl, or aminoloweralkyl;
• R.sup.9 is hydrogen, lower alkyl, phenyl, or phenyl substituted by group M;
• R.sup.10 is hydrogen or lower alkyl;
• a is 0-8;
• b is 1-8;
• c is 2-8;
• m is 1-4;
• n is 0 or 1;
• p and q are each 0,1 or 2, provided that in formulae IIIb and IIIc the sum of p and q is 1 or 2, and that in formula IIId p is not 0;
• and pharmaceutically acceptable salts thereof.