CC(C)=CCc1c(O)cc(O)c2c(=O)c(O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](O)[C@H]3O)c(-c3ccc(O)cc3)oc12
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?