CCCCN(C(=O)c1cc(-c2ccncc2)nc2ccccc12)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
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?