COc1cc(CC(NC(C)=O)C(=O)NC2CCN(S(=O)(=O)c3ccc(NC(C)=O)cc3)CC2)cc(OC)c1
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?