Br[C:2]1[CH:3]=[C:4]2[C:9](=[N:10][CH:11]=1)[N:8]([C:12]([NH2:14])=[O:13])[CH2:7][CH2:6][CH2:5]2.[N:15]1([C:20]([C:22]2[CH:23]=[N:24][CH:25]=[C:26](B3OC(C)(C)C(C)(C)O3)[CH:27]=2)=[O:21])[CH2:19][CH2:18][CH2:17][CH2:16]1.C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1>[N:15]1([C:20]([C:22]2[CH:27]=[C:26]([C:2]3[CH:3]=[C:4]4[C:9](=[N:10][CH:11]=3)[N:8]([C:12]([NH2:14])=[O:13])[CH2:7][CH2:6][CH2:5]4)[CH:25]=[N:24][CH:23]=2)=[O:21])[CH2:19][CH2:18][CH2:17][CH2:16]1To a mixture of 6-bromo-3,4-dihydro-2H-[1,8]naphthyridine-1-carboxylic acid amide (55 mg, 0.22 mmol) and pyrrolidin-1-yl-[5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridin-3-yl]-methanone (78 mg, 0.26 mmol) in 1,4-dioxane (2 mL) is added 2.0 N aqueous sodium carbonate solution (0.23 mL, 0.46 mmol). Argon gas is bubbled through the solution for 5 min. To the mixture is added PdCl2(dppf) catalyst (12 mg, 0.02 mmmol) in one portion. The mixture is heated at 90° C. for 2 hrs. The mixture is filtered through short pad of diatomaceous earth, rinsing with EtOAC (3×1 mL). The filtrate is dried under reduced pressure. The reaction mixture is purified by Mass-triggered reverse phase HPLC to give 36 mg of the titled product.
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