COC(=O)[C@@]1(Cc2ccc(F)cc2)[C@H]2c3cc(C(=O)N(C)C)n(Cc4cc(C)n(C)n4)c3C[C@H]2CN1C(=O)c1ccccc1
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?