Water → Methyl 7-[4-({[(2-fluoro-5-methylphenyl)amino]carbonyl}amino)phenyl]thieno[3,2-b]pyridine-2-carboxylate

HRID 2407210Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[CH:8]=[C:9]([C:11]([O:13][CH3:14])=[O:12])[S:10][C:3]=12.[F:15][C:16]1[CH:21]=[CH:20][C:19]([CH3:22])=[CH:18][C:17]=1[NH:23][C:24]([NH:26][C:27]1[CH:32]=[CH:31][C:30](B2OC(C)(C)C(C)(C)O2)=[CH:29][CH:28]=1)=[O:25].C([O-])([O-])=O.[Na+].[Na+].O>O1CCOCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[F:15][C:16]1[CH:21]=[CH:20][C:19]([CH3:22])=[CH:18][C:17]=1[NH:23][C:24]([NH:26][C:27]1[CH:28]=[CH:29][C:30]([C:2]2[CH:7]=[CH:6][N:5]=[C:4]3[CH:8]=[C:9]([C:11]([O:13][CH3:14])=[O:12])[S:10][C:3]=23)=[CH:31][CH:32]=1)=[O:25]

Participants

Conditions

Temperature: 70 °C

Procedure

To a mixture of methyl 7-bromothieno[3,2-b]pyridine-2-carboxylate (68 mg, 0.25 mmol) and 1-(2-fluoro-5-methylphenyl)-3-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]urea (102 mg, 0.28 mmol) in 8 ml of 1,4-dioxane, was added PdCl2(PPh3)2 (10 mg, 0.014 mmol) and 1M Na2CO3 aqueous solution (0.25 ml, 0.5 mmol). The mixture was heated at 70° C. under N2 for 1 hour, cooled to room temperature and poured into 100 ml of water. The brown precipitates were filtered, washed with water and dried to give the crude product, which was purified by silica gel chromatography, eluting with 2-3% MeOH/CHCl3 to give methyl 7-[4-({[(2-fluoro-5-methylphenyl)amino]carbonyl}amino)phenyl]thieno[3,2-b]pyridine-2-carboxylate as light yellow solid. Yield: 30 mg, 28%.

Workup

temperaturecooled to room temperature
customThe brown precipitates
filtrationwere filtered
washwashed with water
customdried
customto give the crude product, which
customwas purified by silica gel chromatography
washeluting with 2-3% MeOH/CHCl3

Sources & evidence

ORD record: ord-da571e0e685747b581e6495badec095e
Source dataset: uspto-grants-2014_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08809534B2

Reaction notes

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