Cc1ccc2c(=O)cc(C(=O)N(Cc3ccc(C(C)(C)C)cc3)C3CCS(=O)(=O)C3)oc2c1
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?