Cc1cc(NS(=O)(=O)c2ccc(NC(=O)C(C(C)C)N3C(=O)c4ccccc4C3=O)cc2)nc(C)n1
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?