CC(C)(C)[C@H]1COC(=O)[C@@H](Cc2ccc(F)cc2)C/C=C\C[C@@H](CC(=O)N[C@@H](CO)Cc2ccccc2)C(=O)N1
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?