The present invention relates in part to the selective cancer therapy scheme based on the chemical examination that whether there is PI3K mutation in blood or blood serum sample from cancer patient. The cancer with 5- (2,Bis--morpholines of 6- -4- bases-pyrimidine-4-yl) -4- trifluoromethylpyridins -2- bases amine or its hydrochloride, or (S)-pyrrolidines -1,2- dicarboxylic acids 2- amides 1- (4- methyl -5- [2- (2,2,2- tri- fluoro- 1,1- dimethyl-ethyIs)-pyridin-4-yl]-thiazol-2-yl }-amide) treatment.