Sulfonyl urea and carbamate ACAT inhibitors

A compound of the formula wherein X is --NH--;

• wherein Ar is
• (a) phenyl which is substituted by
• 2,6 -bis(methylethyl),
• 2,4,6-trimethoxy, or from one to three substituents selected from:
• hydroxy,
• nitro,
• --COOH,
• --COOalkyl wherein alkyl has from 1 to 4 carbon atoms and which is straight or branched, and
• --(CH.sub.2).sub.m NR.sub.3 R.sub.4 wherein m is zero or one, and each of R.sub.3 and R.sub.4 is hydrogen or a straight or branched alkyl group having 1 to 4 carbon atoms;
• or
• (b) 1- or 2-naphthyl which is unsubstituted or substituted with one to three substituents selected from:
• alkyl having from 1 to 4 carbon atoms and which is straight or branched,
• alkoxy having from 1 to 3 carbon atoms and which is straight or branched,
• hydroxy,
• fluorine,
• chlorine,
• bromine,
• nitro,
• cyano,
• trifluoromethyl,
• --COOH,
• --COOalkyl wherein alkyl has from 1 to 4 carbon atoms and is straight or branched,
• --(CH.sub.2).sub.m NR.sub.3 R.sub.4 wherein m, R.sub.3, and R.sub.4 have the meanings defined above;
• wherein R.sub.1 is hydrogen, lower alkyl having from 1 to 4 carbon atoms or benzyl;
• wherein R.sub.2 is ##STR25## wherein each of R.sub.5 and R.sub.6 is hydrogen, methyl or ethyl, or R.sub.5 and R.sub.6 together with the carbon atom to which they are attached form a cyclic group having from 3 to 8 carbon atoms;
• and R.sub.7 is a straight or branched alkyl group having from 4 to 16 carbon atoms;
• and pharmaceutically acceptable salts thereof.