COc1cccc(-c2cccc(-c3nc(C(=O)NCc4ccc(Oc5ccccc5)cc4)cc4c3[C@H](CCO)N([S+]([O-])C(C)(C)C)C4)c2)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?