3,3-disubstituted piperidines as modulators of chemokine receptor activity

A method for antagonism of the activity of the chemokine receptor CCR-5 selectively with respect to the activity of non-chemokine receptors in a mammal in need thereof comprising the administration of an effective amount of a compound of formula I:

• ##STR23## wherein m is zero, 1 or 2;
• n is 1, 2 or 3, with the proviso that the sum of m+n is 3;
• X is:
• ##STR24## one of Y and Z is .dbd.O whereas the other represents two hydrogen atoms;
• Ar is selected from the group consisting of:
• unsubstituted phenyl;
• phenyl which is substituted by 1, 2 or 3 substituents selected from:
• hydroxy, cyano, halogen, trifluoromethyl, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, and C.sub.1-6 alkoxy;
• thienyl;
• benzothienyl;
• napthyl;
• unsubstituted indolyl;
• and
• indolyl which is substituted on the nitrogen atom by a C.sub.1-4 alkyl group;
• R is selected from the group consisting of:
• unsubstituted phenyl;
• and
• phenyl substituted by 1, 2 or 3 substituents selected from:
• hydroxy, cyano, halogen, trifluoromethyl, C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, and C.sub.1-6 alkoxy;
• R.sup.1 is selected from the group consisting of:
• hydrogen;
• C.sub.1-6 alkyl;
• C.sub.1-6 alkyl substituted by 1 or 2 substituents selected from:
• hydroxy, --OR.sup.3, oxo, --NHCOR.sup.3, --NR.sup.3 R.sup.4, cyano, halogen, trifluoromethyl, unsubstituted phenyl, and phenyl substituted by 1 or 2 substituents selected from:
• hydroxy, cyano, halogen and trifluoromethyl;
• unsubstituted phenyl;
• phenyl substituted by 1, 2 or 3 substituents selected from:
• hydroxy, cyano, --C(O)NR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --NR.sup.3 COR.sup.4, halogen, trifluoromethyl, C.sub.1-4 alkyl, --S(O).sub.p C.sub.1-4 alkyl and --C(O)R.sup.3 ;
• unsubstituted aryl;
• aryl substituted by 1, 2 or 3 substituents selected from:
• hydroxy, cyano, --C(O)NR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --NR.sup.3 COR.sup.4, halogen, trifluoromethyl, C.sub.1-4 alkyl, S(O).sub.p C.sub.1-4 alkyl and --C(O)R.sup.3 ;
• and
• a saturated heterocyclic ring of 4, 5 or 6 ring atoms which ring contains 1 or 2 nitrogen atoms, one of which may be at the point of attachment to the remainder of the molecule, and optionally containing in the ring an oxygen atom, which ring is substituted on any available nitrogen atom by a group R.sup.5 and which ring may be further substituted by a group selected from:
• hydroxyC.sub.1-4 alkyl, C.sub.1-4 alkoxyC.sub.1-4 alkoxy, oxo and COR.sup.3, and which ring may have fused thereto a phenyl ring, wherein the phenyl ring may be substituted by 1 or 2 substituents selected from:
• hydroxy, cyano, --C(O)NR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --NR.sup.3 COR.sup.4, halogen, trifluoromethyl, C.sub.1-4 alkyl, --S(O).sub.p C.sub.1-4 alkyl, and --C(O)R.sup.3 ;
• R.sup.2 is selected from:
• C.sub.1-6 alkyl hydroxyC.sub.1-6 alkyl, hydroxy, OR.sup.3, halogen, trifluoromethyl, nitro, cyano, --NR.sup.3 R.sup.4, --NHCOR.sup.3, --NR.sup.3 COR.sup.4, --NHCO.sub.2 R.sup.3, --NR.sup.3 CO.sub.2 R.sup.4, --NHS(O).sub.p R.sup.3, --NR.sup.3 S(O).sub.p R.sup.4, --CONR.sup.3 R.sup.4, --COR.sup.3, --CO.sub.2 R.sup.3 and --S(O).sub.p R.sup.3 ;
• or R.sup.1 and R.sup.2 are joined together to form a 5- or 6-membered non-aromatic ring which may contain in the ring 1 or 2 groups of the formula --NR.sup.5 --, which ring is optionally substituted by an oxo group and which ring may be substituted by, or have fused thereto, a phenyl group, wherein the phenyl ring may be substituted by 1 or 2 substituents selected from:
• hydroxy, cyano, --C(O)NR.sup.3 R.sup.4, --NR.sup.3 R.sup.4, --NR.sup.3 COR.sup.4, halogen, trifluoromethyl, C.sub.1-4 alkyl, -S(O).sub.p C.sub.1-4 alkyl, and --C(O)R.sup.3 ;
• R.sup.3 and R.sup.4 are each independently selected from:
• hydrogen;
• unsubstituted C.sub.1-6 alkyl;
• C.sub.1-6 alkyl substituted by 1 or 2 substituents selected from unsubstituted:
• phenyl, hydroxy, oxo, cyano, C.sub.1-4 alkoxy and trifluoromethyl;
• C.sub.1-6 alkoxy;
• unsubstituted phenyl;
• and
• phenyl substituted by 1, 2 or 3 substituents selected from:
• hydroxy, C.sub.1-4 alkyl, cyano, halogen, and trifluoromethyl;
• or the group --NR.sup.3 R.sup.4 is a saturated or partially saturated heterocyclic ring of 4 to 7 ring atoms, which ring may optionally contain in the ring one oxygen or sulfur atom or a group selected from:
• --NR, --S(O)-- or --S(O).sub.2 -- and which ring may be optionally substituted by one or two groups selected from:
• hydroxyC.sub.1-4 alkyl, C.sub.1-4 alkoxyC.sub.1-4 alkyl, oxo, --COR.sup.6 and --CO.sub.2 R.sup.6 ;
• R.sup.5 is selected from:
• hydrogen, C.sub.1-4 alkyl, --S(O).sub.2 C.sub.1-4 alkyl, --C(O)R.sup.3, unsubstituted phenyl and benzyl;
• R.sup.6 is selected from:
• hydrogen or C.sub.1-4 alkyl;
• and
• p is zero, 1 or 2;
• or a pharmaceutically acceptable salt thereof.