CS(=O)(=O)c1ccc(C2=C(CNC(=O)c3ccc([N+](=O)[O-])cc3)[C@H]3CC[C@@H](C2)N3CCOc2ccccc2)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?