Patent ID: 8293759

Claim:
A compound of formula (I): wherein: X 1 is selected from the group consisting of (1) N; X 2 is selected from the group consisting of (1) —NR 1A R 1B , wherein R 1A and R 1B are linked together with the nitrogen to which they are attached to form a ring structure comprising three to nine ring carbon atoms, wherein one or more of said ring carbon atoms is optionally substituted with one or more (a) halo, (b) —OH, (c) —CN, (d) —C 1-10 alkyl (e) —C 3-12 cycloalkyl, (f) —O—C 1-10 alkyl, or (g) —C 0-6 alkyl-aryl, wherein said alkyl, cycloalkyl or aryl moiety is optionally substituted with one or more (i) halo, (ii) —OH, (iii) —CN, (iv) —C 1-6 alkyl, (v) —C 2-6 alkenyl, (vi) —O—C 1-6 alkyl, or (vii) —C 1-6 haloalkyl, (2) —C 1-10 alkyl (3) —C 3-12 cycloalkyl, (4) —C 1-10 alkynyl, (5) aryl, and (6) heteroaryl, wherein said X 2 alkyl, cycloalkyl, aryl or alkynyl moiety is optionally substituted with one or more (a) —C 1-10 alkyl, (b) halo, (c) —OH, (d) —CN, (e) —O—C 1-10 alkyl, or (f) —C 0-6 alkyl-aryl; R 2 is phenyl, wherein said phenyl R 2 moiety is optionally substituted with one or more: (a) halo, (b) —OH, (c) —CN, (d) —C 1-10 alkyl (e) —C 3-12 cycloalkyl, (f) —O—C 1-10 alkyl, (g) —C 0-6 alkyl-aryl, (h) —C 0-6 alkyl-heteroaryl, or (o) a non-aromatic heterocyclic group having 4 to 8 ring atoms, wherein one ring atom is a heteroatom selected from the group consisting of nitrogen and oxygen, and said alkyl, cycloalkyl, aryl, heteroaryl and heterocyclic moiety is optionally substituted with one or more (i) halo, (ii) —OH, (iii) —CN, (iv) —C 1-10 alkyl, wherein said alkyl is optionally substituted with one or more halo, (v) —O—C 1-10 alkyl, wherein said alkyl is optionally substituted with one or more halo, or (vi) —SO 2 C 1-3 alkyl, Q is a bond or —C 1-6 alkyl, wherein said alkyl is optionally substituted with one or more (a) halo, (b) —OH, (c) —CN, (d) —C 1-10 alkyl, or (e) —O—C 1-10 alkyl; R 3 is selected from the group consisting of (1) hydrogen, (2) —C 1-10 alkyl, (3) —C 2-10 alkenyl, (4) —C 3-12 cycloalkyl, and (5) phenyl, wherein said alkyl, cycloalkyl, alkenyl, or phenyl R 3 moiety is optionally substituted with one or more (a) halo, (b) —OH, (c) —CN, (d) —C 1-10 alkyl, (e) —C 2-10 alkenyl, (f) —C 3-12 cycloalkyl, (g) —O—C 3-12 cycloalkyl, or (h) —O—C 1-10 alkyl; provided that when Q is a bond then R 3 is hydrogen; and R 4 is selected from the group consisting of (1) hydrogen, and (2) —C 1-10 alkyl; or a pharmaceutically acceptable salt thereof.