COc1cccc(C(=O)Nc2cccc(C(=O)NC3=NN(c4c(Cl)cc(Cl)cc4Cl)C(=O)C3)c2)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?