BEZ235 (NVP-BEZ235, Dactolisib) ATP竞争性的抑制PI3K和mTOR，对p110α/γ/δ/β和mTOR(p70S6K)均有抑制作用，IC50分别为4 nM/5 nM/7 nM/75 nM/6 nM，对ATR也有抑制作用，IC50为21 nM；但对Akt和PDK1抑制作用微弱。A dual PI3K and mTOR inhibitor BEZ235 (NVP-BEZ235) is a dual ATP-competitive PI3K and mTOR inhibitor for p110α/γ/δ/β and mTOR(p70S6K) with IC50 of 4 nM /5 nM /7 nM /75 nM /6 nM, respectively. Inhibits ATR with IC50 of 21 nM, whileshown to be a poor inhibitor to Akt and PDK1. A dual PI3K and mTOR inhibitor