C/C=C(\C)C(=O)O[C@H]1CC(C)=C2C(=O)C=C(C)C2[C@@H]2OC(=O)[C@@](C)(OC(=O)C=C(C)C)C12
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?