C/C=C/C=C/C(=O)C1=C(O)[C@]2(C)C(=O)C(C)(O)[C@H]1[C@H]([C@]1(C)OC(O)=C(C)C1=O)[C@H]2C(=O)/C=C/C=C/C
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?