FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to compounds of formula I 
, wherein R2 means methyl, Y means carbon or nitrogen, and R1, R3 and R4 have the value specified in the patent claim. Also, the invention refers to a pharmaceutical composition for the use as a pharmaceutical drug having activity of a phosphatidylinositol-3-kinase inhibitor, to the use of the compounds of formula I for preparing the pharmaceutical drug for treating a disease mediated by phosphatidylinositol 3-kinase and to a method for preparing the compounds of formula I .
EFFECT: preparing the compounds of formula I possessing activity of the phosphatidylinositol-3-kinase inhibitor.
10 cl, 5 tbl, 51 ex
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