COc1cc([C@H]2c3cc4c(cc3[C@@H](O[C@@H]3O[C@H]5CO[C@@H](C)O[C@]5(O)C[C@H]3O)[C@@H]3COC(=O)[C@H]23)OCO4)cc(OC)c1O
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?