CC(C)NC(=O)N(C)C[C@H]1Oc2ccc(NS(=O)(=O)c3cccs3)cc2C(=O)N([C@H](C)CO)C[C@@H]1C
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?