COc1cc(C(Nc2ccc(S(=O)(=O)N3CCC(C)CC3)cc2)C(=O)NCC2CCCO2)cc(OC)c1OC
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?