COc1ccc2c(c1)c(CC(=O)Nc1cccc(S(N)(=O)=O)c1)c(C)n2C(=O)c1ccc(Cl)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?