Compounds and methods for promoting smoking cessation

A method of treating at least one condition selected from the group consisting of smoking addiction, Parkinson's disease, pain, depression, Tourette's syndrome, inflammatory bowel syndrome, schizophrenia, anxiety, epilepsy, attention-deficit hyperactivity disorder, ulcerative colitis and obesity, comprising administering to a patient in need thereof an effective amount of a compound represented by formula (II):

• wherein
• A3 is —R, —N(R)2, —C(═NR)N(R)2, or —OR;
• each Q is, independently, C—X or N, with the proviso that at least one Q is N and at least one Q is C—X;
• each X is, independently, H, halogen, alkyl, alkenyl, alkynyl, aryl, aralkyl, —OH, —OR, —CH2—CO2R, —CO—R, —CO2R, —N(R)2, —NR—CO—R, —CO—N(R)2, —NRCO2R, —SO3CF3, —NO2, —N3, —CF3, —CH═CHY, or —CN, with the proviso that at least one X is represented by the formula:
• each S is, independently, halogen, alkyl, alkenyl, alkynyl, phenyl, aralkyl, —OH, —OR, —CH2—CO2R, —CO—R, —CO2R, —N(R)2, —NR—CO—R, —CO—N(R)2, —NRCO2R, —SO3CF3, —NO2, —N3, —CF3, —CH═CHY, or —CN, or two S, taken together with the phenyl group to which they are bonded, form a 2-naphthyl group;
• c is 1, 2, 3, 4 or 5;
• Y is a halogen;
• and
• each R is, independently, H, alkyl, alkenyl, alkynyl, aryl, or aralkyl;
• or a pharmaceutically acceptable salt thereof.