CC(C)CCCC(C)[C@H]1CCC2[C@@H]3CCC4Cc5nc6c(nc5C[C@]4(C)C3CC[C@@]21C)CC1CC[C@@H]2C(CC[C@@]3(C)C2CC[C@@H]3O)[C@@]1(C)C6
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?