Heterocyclic compounds

摘要

The inventive subject matter relates to compounds, pharmaceutical compositions, and kits containing a heterocyclic compound represented by the formula (I) wherein R is an alkyl group optionally having substituent(s) etc., X is an amino group optionally having substituent(s), Y₁ and Y₂ are nitrogen atoms etc., an isomer or solvate thereof or a pharmaceutically acceptable salt thereof as an active ingredient.