COC(=O)[C@H](Cc1ccccc1)NC(=O)O[C@@H]1C(=O)c2cc(OC)ccc2O[C@H]1c1cccc(OC)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?