COc1ccc(N(C)S(=O)(=O)c2cccc(C(=O)OC(C(=O)Nc3cc(C)cc(C)c3)c3ccccc3)c2)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?