COc1ccc(NC(=O)CCS(=O)(=O)c2nc(-c3ccc4c(c3)OCO4)cc(C(F)(F)F)n2)c(OC)c1
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?