CC(C)(C)OC(=O)C1C(=O)NC(=O)CC1CC(OCc1ccccc1)C(OCc1ccccc1)C(COCc1ccccc1)OCc1ccccc1
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?