| abstract |
Compounds of formula (I) and isomers, salts, solvates, chemically protected forms, and prodrugs thereof, wherein one of X 1 , X 2 , and X 3 is N, the other Are CH; R N1 and R N2 together with the nitrogen atom to which they are attached form a nitrogen-containing heterocyclic ring having from 4 to 8 ring atoms; R N3 and R N4 are Forming a nitrogen-containing heterocyclic ring with 4 to 8 ring atoms together with the attached nitrogen atom] and its use in treating diseases ameliorated by inhibition of mTOR. |