C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)S(=O)(=O)c2ccc(C(F)(F)F)cc2)OCc2ccccc2-c2ccccc2C1=O
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?