CCCCCCn1c(=O)n2n(c1=O)C[C@@]1(O)CN(S(=O)(=O)c3ccc(C)cc3)C[C@@]1(OC(=O)NC1CCCC1)C2
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?