COc1ccc(C=O)cc1Oc1ccc(C[C@H]2c3c(cc(OC)c4c3Oc3cc5c(cc3O4)CCN(C)C5=O)CCN2C)cc1.Cl
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?