O=C1N[C@@H](Cc2ccccc2)C(=O)N2[C@H]1C[C@]1(Br)c3ccccc3N(S(=O)(=O)c3ccccc3)[C@H]21
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?