CC[C@]12C(=O)N(C)C[C@H]([C@@H]3C(=O)N(C)C(=O)[C@@H]31)N2C(=O)c1ccc(Cl)c(Cl)c1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?