COc1ccccc1NS(=O)(=O)c1cc(NC(=O)c2[nH]c(C)c(C(C)=O)c2C)ccc1N1CCOCC1
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?