C[C@@H]1[C@H]2CCCC[C@H]2CN(C(=O)OC(C)(C)C)[C@@H]1c1cn(Cc2ccccc2)c2ccc(F)cc12
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?