Schering Corporation

Derek B Lowe

Joseph A Kozlowski

Sundeep Dugar

Michael J Green

Wei K Chang

Theodros Asberom

Samuel Chackalamannil

John W Clader

Stuart W McCombie

Wayne D Vaccaro

Joel G Berger

Margaret H Sherlock

Wing C Tom

Susan F Vice

Allen Barnett

Robert D McQuade

Margaret E Browne

Lian-Yong Chen

Jayaram R Tagat

Wang Yuguang

Craig D Boyle

Yuguang Wang

Javaram R Tagat

Muscarinic antagonists

Di-N-substituted piperazine or 1,4 di-substituted piperadine compounds in accordance with formula I (including all isomers, salts, esters, and solvates)

Di-N-substituted piperazine or 1,4 di-substituted piperadine compounds in accordance with formula I (including all isomers, salts, esters, and solvates) ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.21, R.sup.27, R.sup.28, X, Y, and Z are as defined herein are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease. Pharmaceutical compositions and methods of preparation are also disclosed. Also disclosed are synergistic combinations of compounds of the above formula with acetylcholinesterase inhibitors.

Di-N-substituted piperazine or 1,4 di-substituted piperadine compounds in accordance with formula I (including all isomers, salts, esters, and solvates) ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.21, R.sup.27, R.sup.28, X, Y, and Z are as defined herein are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease. Pharmaceutical compositions and methods of preparation are also disclosed. Also disclosed are synergistic combinations of compounds of the above formula or other compounds capable of enhancing acetylcholine release with acetylcholinesterase inhibitors.

1,4 Di-substituted piperidine muscarinic antagonists of formula I ##STR1## or a pharmaceutically acceptable salt, ester, or solvate thereof, wherein X is a bond, --O--, --SO.sub.0-2 --, --CO--, --C(OR.sup.7).sub.2 --, --CH.sub.2 --O--, --O--CH.sub.2 --, --CH.dbd.CH--, --CH.sub.2 --, --CH(C.sub.1 --C.sub.6 alkyl)--, --C(C.sub.1 --C.sub.6 alkyl).sub.2 --, --CONR.sup.17 --, --NR.sup.17 CO--, --SO.sub.2 NR.sup.17 -- or --NR.sup.17 SO.sub.2 --; R is C.sub.3 --C.sub.6 cycloalkyl, optionally substituted phenyl or optionally substituted pyridyl; R.sup.1 is H, --CN, --CF.sub.3, alkyl, cycloalkyl, cycloalkenyl, alkenyl, --COR.sup.15, --COO(alkyl, aryl, heteroaryl, alkylaryl or alkylheteroaryl), alkylaryl, alkylheteroaryl or --CON(R.sup.13).sub.2 ; R.sup.2 is cycloalkyl, cycloalkenyl, t-butoxycarbonyl or optionally substituted 4-piperidinyl; and R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.13, R.sup.15 and R.sup.17 are as defined in the specification are disclosed as being useful for treating cognitive disorders such as Alzheimer's disease; also disclosed are pharmaceutical compositions, methods of preparation and combinations of compounds of formula I capable of enhancing ACh release with ACh'ase inhibitors.

Muscarinic antagonists for treating memory loss

Di-N-substituted piperazine or 1,4-di-substituted piperidine compounds in accordance with formula I (including all isomers, salts, esters, and solvates) ##STR1## wherein Q, n, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.21, R.sup.27, R.sup.28, X, and Z are as defined herein are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease. Pharmaceutical compositions and methods of preparation are also disclosed. Also disclosed are synergistic combinations with acetyl-cholinesterase inhibitors of compounds capable of enhancing acetylcholine release and having the above formula.

Di-N-substituted piperazine or 1,4 di-substituted piperadine compounds of formula I ##STR1## wherein one of Y and Z is N and the other is N, CH, or C-alkyl; X is --O--, --SO.sub.0-2 --, amino, substituted amino, --CO--, --CH.sub.2 --, mono or di-substituted methylene, --CS--, --CONR.sup.20 --, --NR.sup.20 --SO.sub.2 --, --NR.sup.20 CO--, --SO.sub.2 NR.sup.20 --, --CH.dbd.CH--, --C.tbd.C-- or --NHC(O)NH--; R is optionally substituted phenyl, aryl or cycloalkyl, or other substituents as defined in the specification; R.sup.1 and R.sup.21 are H, CN or optionally substituted alkyl, or other substituents as defined in the specification; R.sup.2 is optionally substituted cycloalkyl or piperidyl, or other substituents as defined in the specification; and R.sup.3, R.sup.4, R.sup.5, R.sup.20, R.sup.27 and R.sup.28 are as defined in the specification; are muscarinic antagonists useful for treating cognitive disorders such as Alzheimer's disease; pharmaceutical compositions and methods of preparation are also disclosed, as well as synergistic combinations of compounds of the above formula or other compounds capable of enhancing acetylcholine release with acetylcholinesterase inhibitors.

Growing community of inventors

Scotch Plains, NJ, United States of America

Derek B Lowe