O=C1C2C(C(=O)N1CCN1CCN(Cc3ccc([N+](=O)[O-])cc3)CC1)[C@H]1C=C[C@@H]2C1
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?