C[C@H](N)C(=O)N[C@H]1[C@@H](C)OC(=O)C2=C(O)C[C@@H](O)[C@H](O)[C@H]21
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?