CC(C)[C@@H](C(=O)NC1CCCC1)N1C(=O)N2CCc3c([nH]c4ccccc34)[C@@]2(C)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?