COc1cc2c(cc1Oc1ccc(OC)c3c1CC1c4c(cc(OC)c(OC)c4-3)CCN1C)CC1c3c(cc(OC)c(OC)c3-2)CCN1C.Cl
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?