COc1ccc(OC)c2c1cc(C(=O)N[C@H](C(=O)N1CCC[C@H]1C(=O)O)C(C)C)n2C
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?