CC1(C)C(C#N)C1C1=C(N2CCOCC2)[C@]2(C)C(OC(=O)c3ccccc3)CC[C@@H]2C1
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?