CC1(C)C(O)CC(O)[C@]2(C)C1CC(O)[C@]1(C)C2CC[C@@]2(C)C(c3ccoc3)OC(=O)C3O[C@@]321
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?