COc1ccccc1N1C(=O)[C@H]2[C@@H](C1=O)[C@@H]1C=CC=NN1[C@H]2C(=O)c1ccc(OC(C)=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?