COc1cccc(OCCOc2ccc(/C=C3\C(=N)N4N=C(S(C)(=O)=O)SC4=NC3=O)cc2OC)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?