CC(C)NC(=O)N(C)C[C@H]1Oc2ccc(NC(=O)Nc3ccc(C(F)(F)F)cc3)cc2C(=O)N([C@H](C)CO)C[C@@H]1C
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?