COc1ccccc1N1CCN(C(=O)c2cc(C(=O)N3CCN(c4ccccc4OC)CC3)cc([N+](=O)[O-])c2)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?