American Home Products Corporation

Christa M LaClair

Thomas Joseph Commons

Susan Christman

Donald P Strike

Inhibition of the enzymes cholesterol ester hydrolase (CEH) and/or acyl coenzyme A: cholesterol acyltransferase (ACAT) results in the inhibition of the esterification of cholesterol and are therefore implicated in the inhibition of absorption of cholesterol and thus can lower serum cholesterol levels. Compounds of the formula: ##STR1## where Z is ##STR2## or --Ar.sup.1 --(CR.dbd.CR).sub.1-3 --Ar.sup.2, --AR.sup.1 --NR.sup.7 --AR.sup.2 and A is a linking group inhibit the enzymes CEH and/or ACAT (in vitro) and inhibit absorption of cholesterol.

Tris carbamic acid esters: inhibitors of cholesterol absorption

Compounds which inhibit the enzyme cholesterol ester hydrolase (CEH) thus inhibit the formation of esterified cholesterol. Esterified cholesterol is absorbed through the intestine and inhibition of the enzyme therefore results in inhibition of cholesterol absorption. The compounds of this invention inhibit cholesterol ester hydrolase and have the formula: ##STR1## wherein Z is --Ar.sup.1, --Ar.sup.1 --Ar.sup.2, --Ar.sup.1 --O--Ar.sup.2, --Ar.sup.1 --S--Ar.sup.2, ##STR2## --Ar.sup.1 --(CH.sub.2).sub.1-20 --Ar.sup.2, --Ar.sup.1 --(CH.sub.2).sub.1-20 --O--Ar.sup.2, --Ar.sup.1 --O--(CH.sub.2).sub.1-20 --Ar.sup.2, --Ar.sup.1 --(CR.sup.6 .dbd.CR.sup.6).sub.1-3 --Ar.sup.2 or --Ar.sup.1 --NR.sup.7 --Ar.sup.2 ; and

4-carbamoyloxy-piperidine-1-carboxylic acid esters: inhibitors or

The compound of the formula: ##STR1## where R.sub.1 and R.sub.5 are independently hydrogen, fluorine, chlorine, bromine, iodine, trifluoromethyl, cyano, nitro, CO.sub.2 H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.1 -C.sub.6 alkoxy, C.sub.3 -C.sub.8 cycloalkyl, cycloalkylalkyl, C.sub.3 -C.sub.8 cycloalkyloxy, C.sub.2 -C.sub.7 alkylcarbonyl, C.sub.2 -C.sub.7 alkylcarbonyloxy, C.sub.2 -C.sub.7 alkoxycarbonyl, mono- or di-alkylaminocarbonyl, tetrazolyl, --OH, --(CH.sub.2).sub.1-6 OH, --SH, --NH.sub.2 or --(CH.sub.2).sub.1-6 NR.sub.8 R.sub.9 where R.sub.8 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.7 alkylcarbonyl, C.sub.2 -C.sub.7 alkoxycarbonyl and R.sub.9 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.3 and R.sub.4 are hydrogen or taken together with the carbon atoms to which they are attached form a double bond; R.sub.6 and R.sub.7 are independently H, C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.3 -C.sub.8 cycloalkyl, cycloalkylalkyl or R.sub.6 and R.sub.7 taken together are polymethylene, which, with the nitrogen atom to which they are attached, form a ring of 3 to 8 atoms; or a pharmaceutically acceptable salt thereof.

Pyrido[3,4-b]indole derivatives as serotonergic agents

Pyrido[3,4-B]indole derivatives as serotonergic agents

The compound of the formula: ##STR1## where R.sub.1 and R.sub.7 are independently hydrogen, fluorine, chlorine, bromine, iodine, trifluoromethyl, cyano, nitro, CO.sub.2 H, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.1 -C.sub.6 alkoxy, C.sub.3 -C.sub.8 cycloalkyl, cycloalkylalkyl, C.sub.3 -C.sub.8 cycloalkyloxy, C.sub.2 -C.sub.7 alkylcarbonyl, C.sub.2 -C.sub.7 alkylcarbonyloxy, C.sub.2 -C.sub.7 alkoxycarbonyl, mono or di-alkylaminocarbonyl, tetrazolyl,-OH,-(CH.sub.2).sub.1-6 OH, -SH, -NH.sub.2 or-(CH.sub.2).sub.1-6 NR.sub.8 R.sub.9 where R.sub.8 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.7 alkylcarbonyl, C.sub.2 -C.sub.7 alkoxycarbonyl and R.sub.9 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.3 and R.sub.4 are hydrogen or taken together with the carbon atoms to which they are attached form a double bond; R.sub.5 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.6 is C.sub. 1 -C.sub.12 alkyl, C.sub.3 to C.sub.8 cycloalkyl, cycloalkylalkyl, or C.sub.6 to C.sub.12 bicyclic or C.sub.9 to C.sub.14 tricyclic alkyl; or a pharmaceutically acceptable salt thereof.

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Newtown, PA, United States of America

Christa M LaClair