CCN1C(C)=C(C(=O)OC)C(c2ccccc2)N2C(=O)[C@](O)(C(=O)OC)CC(C#N)=C12
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?