C=CC[C@@H](CC(=O)N[C@@H](CO)Cc1ccccc1)C(=O)NC[C@@H](OC(=O)[C@@H](CC=C)Cc1ccc(F)cc1)c1ccccc1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?