CC(C)C(NC(=O)C(Cc1ccccc1)NC(=O)[C@H]1CCC[C@H]1NC(=O)C(N)Cc1ccc(O)cc1)C(N)=O.O=C(O)C(F)(F)F
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?