O=c1cc(-c2ccc(O)cc2)oc2cc(OC3OC(CO)C(O)C(O)[C@H]3O[C@@H]3OC[C@@](O)(CO)C3O)cc(O)c12
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?