CCOC(=O)C1CCN(Cc2nc3ccc([N+](=O)[O-])cc3c(=O)n2-c2ccc(OC)cc2OC)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?