C=CC[C@@H](Cc1ccc(F)cc1)C(=O)OC[C@H](Cc1ccccc1)NC(=O)[C@H](CC=C)CC(=O)N(CCO)Cc1ccccc1
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?