Cc1ccc(S(=O)(=O)N2[C@@H](c3ccc(Br)cc3)C(C(=O)O)=C[C@H]2C(C)(C)C)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?