CC1(C)CC(=O)C2=C(C1)NC1=C(C(=O)CC(C)(C)C1)C2c1ccc([N+](=O)[O-])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?