CN1C(=O)[C@H]2[C@H]3C[C@@H]([C@H]2C1=O)[C@@H]1C(c2ccc(Cl)cc2Cl)=NO[C@H]31
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?