3-azabicycloalkyl derivatives and pharmaceutical composition comprising the same

The present invention relates to: a compound of chemical formula 1, a pharmaceutically acceptable salt thereof or an isomer thereof; and a pharmaceutical composition for treating or preventing metabolic diseases, containing same as an active ingredient. [Chemical formula 1] In chemical formula 1, R1 represents an unsubstituted or C1-C5 alkyl-substituted C3-C7 heterocycloalkyl containing one to three N atoms, R2 and R3 independently represent hydrogen, a halogen or a C1-C5 alkyl, R4 represents -(CH2)mCO2H, m, p and q are each independently an integer of 0-2, X represents N or C-CN, Y represents CH2 or O, and Z represents CH2 or a single bond.