CC(NC(=O)[C@H](C)N1C(=O)N2CCc3c([nH]c4ccccc34)[C@@]2(C)C1=O)c1ccccc1
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?