Cc1ccc2c(c1)C(c1ccccc1)N(C(=O)c1ccc(S(=O)(=O)N3CCCCC3)cc1)CC(=O)N2
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?