CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)N[C@@H](CO)[C@H](O)[C@@H]1C[C@@H]1C(=O)N1CCCC1
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?