Cesium carbonate → Ethyl 5-(5-formylfuran-2-yl)nicotinate

Reaction equation

CC1(C)C(C)(C)OB([C:9]2[CH:10]=[N:11][CH:12]=[C:13]([CH:19]=2)[C:14]([O:16][CH2:17][CH3:18])=[O:15])O1.Br[C:22]1[O:26][C:25]([CH:27]=[O:28])=[CH:24][CH:23]=1.C([O-])([O-])=O.[Cs+].[Cs+]>O.O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH:27]([C:25]1[O:26][C:22]([C:9]2[CH:10]=[N:11][CH:12]=[C:13]([CH:19]=2)[C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:23][CH:24]=1)=[O:28]