CC(C)(C)OC(=O)N1CCN(C(=O)c2[nH]cnc2C(=O)N[C@@H](Cc2ccccc2)C(=O)OCc2ccccc2)CC1
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?