Cc1ccc(N2C(=O)[C@@H]3[C@@H]4O[C@@H]([C@H]5ON=C(c6ccccc6Cl)[C@H]54)[C@@H]3C2=O)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?