Cc1ccc(S(=O)(=O)N2C[C@@H]3CCCC[C@@H]3[C@@H](C)[C@H]2c2cn(Cc3ccccc3)c3ncccc23)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?