CC(=O)NC1C(OCc2ccccc2)OC(CO)C(O)C1OC(C)C(=O)N[C@@H](C)C(=O)N[C@H](CCC(=O)NCCNCCNc1c2ccccc2nc2cccc([N+](=O)[O-])c12)C(N)=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?