CCCC(=O)O[C@H]1C=C2C[C@@]34SS[C@]5(CC6=C[C@H](OC(C)=O)[C@@H]7O[C@@H]7[C@H]6N5C3=O)C(=O)N4[C@@H]2[C@H]2O[C@@H]12
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?