[Problem] To provide a compound which can act relying on an agonistic activity on cannabinoid receptor type 2 and is therefore useful as a novel and excellent prophylactic and/or therapeutic agent for diseases associated with cannabinoid receptor type 2. [Solution] Examination was made on compounds having an agonistic activity on cannabinoid receptor type 2, and it is confirmed that a condensed ring pyridine compound of the invention has an excellent agonistic activity on cannabinoid receptor type 2. This condensed ring pyridine compound has an agonistic activity on cannabinoid receptor type 2, and can be used as a prophylactic and/or therapeutic agent for diseases associated with cannabinoid receptor type 2, such as inflammatory diseases and pain.