CCc1cccc2c1NC(=O)[C@]21[C@@H]2C(=O)N(Cc3ccccc3)C(=O)[C@@H]2[C@@H]2CCCN21
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?