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
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?