1,2,4triazolo1,5-cpyrimidine derivative as A_2A receptor inhibitor

摘要

Provided are a compound represented by formula (I), an isomer or a pharmaceutically acceptable salt thereof, and an application of the same in preparing a drug for treating a disease related to A_2A receptor. The R₁, R₂, R₃, ring A, ring B, n, and m are as defined in the specification.;