CN[C@@H](C)C(=O)N[C@@H](C(=O)N1CCC[C@H]1C(=O)N[C@@H]1CCCc2ccccc21)C(C)C.O=CO
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?