| abstract |
Disclosed is a compound that selectively inhibits phosphatidylinositol 3-kinase (PI3K) activity. A compound represented by the following formula or a pharmaceutically acceptable salt of the compound: [X 1 and X 2 are each a C or N atom, Y is N, O or S, Z is C or N, n is 0, 1 , 2 or 3, R 1 is a specific monocycle, R 2 to Each R 6 is independently halo, haloalkyl, etc.] [Selection figure] None |