Cc1c(C(=O)N2CC3(CC(c4cccc(NC(=O)[C@H]5CCC(=O)N5)c4)=NO3)C[C@@H]2C(N)=O)cc([N+](=O)[O-])cc1[N+](=O)[O-]
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?