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 donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?