Cc1ccc(S(=O)(=O)N2CCOCC2)cc1C(=O)N(Cc1nnc(-c2ccccc2Cl)o1)C1CC1
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?