COc1ccc(/C=C2/C(=O)N(/C=C3\C(=O)Oc4ccccc4C3=O)/C(=N/C(C)=O)N2C)cc1OC
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?