COc1ccc(N2C(=O)C3ON(C(C(N)=O)c4ccccc4)C(c4cc5ccccc5c5ccccc45)C3C2=O)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?