CC(=O)N(CCc1ccccc1)C(C#N)c1ccc(OCCCCCCCCCCOc2ccc(C(C#N)N(CCc3ccccc3)C(C)=O)cc2)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?