CC1=C(c2ccc(C(C)C)cc2)S(=O)(=O)N=C1N1CCC(C(=O)Nc2ccc(C)cc2)CC1
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?