COc1ccc(NC(=O)CSc2ncc3c(n2)-c2ccccc2N(Cc2ccc(C)cc2)S3(=O)=O)cc1Cl
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?