| abstract |
Disclosed is a novel compound which can inhibit phosphatidylinositol 3-kinase (PI3K) and/or mammalian target of rapamycin (mTOR) and has an anti-tumor activity. Specifically disclosed is a compound which can inhibit PI3K and/or mTOR, has an anti-tumor activity, and is represented by formula (1) that has various substituents. [In formula (1), R 1 , R 2 , R 3 , R 4 , R a , R b , R c and X are as defined in the description.] |