CC(C)=C1C(=O)C(c2ccccc2)=C2CN3C(=O)N(CCc4ccccc4)C(=O)[C@]3(Cc3ccc(C(F)(F)F)cc3)[C@H]21
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?