COc1cc(C2C(C#N)=C(N)N(Nc3ccccc3)C3=C2C(=O)CC(C)(C)C3)ccc1OCc1ccccc1
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?