CCCCCC1=C2C(c3ccc(OC)cc3)=C(N)C(c3ccc(OC)cc3)=C3NC(=O)C(C=C1)C32
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?