CC(=O)Oc1cc(C(F)(F)F)ccc1C(=O)OC1(C)OC(=O)c2ccc(C(F)(F)F)cc2O1
Orally active drug usually follows the rule of three, in which the molecular weight of a fragment is <300, the c Log P is ≤3, the number of hydrogen bond donors is ≤3 and the number of hydrogen bond acceptors is ≤3. The molecule meets rule of three or not?