[EN] POSITIVE MODULATORS OF NICOTINIC RECEPTOR AGONISTS<br/>[FR] MODULATEURS POSITIFS DES AGONISTES DU RECEPTEUR NICOTINIQUE
申请人:ASTRAZENECA AB
公开号:WO2001032619A1
公开(公告)日:2001-05-10
A compound of Formula (I) wherein R?1 and R3¿ independently represent hydrogen, or C¿1?-C4 alkyl; R?2¿ represents hydrogen, C¿1?-C4 alkyl, or CH2CN; R?4¿ represents hydrogen, C¿1?-C4 alkyl, C2-C4 alkenyl, C2-C4 alkynyl, CH2C(W)=CH2, (CH2) nAr, CH2CH=CHAr, CH2COPh, CH2CONHAr, C(U)NH(CH2) mAr, or (CH2) dY(CH2) eAr; U represents O, or S; W represents halogen; X and Y independently represent O, S, or NR?5; R5¿ represents hydrogen, C¿1?-C4 alkyl, C2-C4 alkenyl; or together R?3 and R5¿ form a ring; n and m independently are 0-4; d is 1-3; e is 0-1; Ar represents phenyl, naphthyl or 5- or 6-membered heterocyclic ring containing zero to four nitrogens, zero to one sulfurs and zero to one oxygens; Ar is optionally substituted with one or more substituents selected from: hydrogen, halogen, C¿1?-C4 alkyl, C2-C4 alkenyl, C2-C?4¿ alkynyl CN, NO¿2?, CF3, OR?6, NR7R8, COOR9; R6, R7 and R8¿ are independently hydrogen, C¿1?-C4 alkyl, aryl, heteroaryl, C(O)R?10¿, C(O)NHR11, SO2R?12, or; R7 and R8¿ together may be (CH¿2?)jQ(CH2) k where; Q is O, S, NR?13¿ or a bond; j is 2-4; k is 0-2; R?9, R10, R11, R12 and R13¿ are independently hydrogen, C¿1?-C4 alkyl, aryl or heteroaryl; or an enantiomer thereof, and pharmaceutically acceptable salts thereof, processes for preparing them, pharmaceutical compositions containing them and their use in therapy, especially for treatment of conditions associated with reductions in nicotinic transmission. The compounds of the invention enhance the efficacy of agonists at nicotinic receptors.