CCN(C[C@H]1N[C@@](Cc2ccccc2)(C(=O)OC)[C@H]2C(=O)N(Cc3ccccc3)C(=O)[C@@H]12)S(=O)(=O)c1ccc(C)cc1.O=C(O)C(F)(F)F
Hydrogen bond acceptor is the chemical compound which contains the lone electron pairs that participate in the hydrogen bond formation. This compound should contain a more electronegative atom (more electronegative than hydrogen) with lone electron pairs. Then it can attract protons from a donor. Moreover, the electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?