Disclosed are compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein: M is CH or N; U and W are each CH, or one of U and W is CH and the other is N; X is a bond, alkylene, —C(O)—, —C(N—OR5)—, —C(N—OR5)—CH(R6)—, —CH(R6)—C(N—OR5)—, —O—, —OCH2—, —CH2O— or —S(O)0-2—; Y is —O—, —(CH2)2—, —C(═O)—, —C(═NOR7)— or —SO0-2—; Z is a bond, optionally substituted alkylene or alkylene interrupted by a heteroatom or heterocyclic group; R1 is optionally substituted alkyl, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocycloalkyl, or benzimidazolyl or a derivative thereof; R2 is optionally substituted alkyl, alkenyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; and the remaining variables are as defined in the specification; compositions and methods for treating an allergy-induced airway response, congestion, diabetes, obesity, an obesity-related disorder, metabolic syndrome and a cognition deficit disorder using said compounds, alone or in combination with other agents.