CCOC(=O)[C@@H]1ON2OC(OC3CCCC3(c3ccccc3)c3ccccc3)C(OC(C)=O)[C@H]3OC(=O)[C@@H]1C32
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?