C[C@]12CC[C@H]3[C@@H](CC=C4C[C@@H](N5CCCC5)CC[C@@]43C)[C@@H]1C[C@H](N1CCCCC1)[C@@H]2O
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?