CCOC(=O)c1ccn2c(C(=O)c3ccc([N+](=O)[O-])cc3)c(C(=O)OC)c(C(=O)OC)c2c1
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?