COc1ccc(-c2ccc(/C=C3\C(=O)N(c4ccccc4)N=C3c3ccccc3)o2)c([N+](=O)[O-])c1
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?