Sodium Carbonate → HCID 70872392, compound

HRID 1616390Notes

Reaction equation

Br[C:2]1[CH:3]=[C:4]([C:24](=[O:36])[NH:25][CH2:26][C:27]2[C:28](=[O:35])[NH:29][C:30]([CH3:34])=[CH:31][C:32]=2[CH3:33])[C:5]([CH3:23])=[C:6]([N:8]([CH3:22])[CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH2:10]2)[CH:7]=1.[CH3:37][N:38]([CH3:55])[CH2:39][C:40]1[CH:45]=[CH:44][C:43](B2OC(C)(C)C(C)(C)O2)=[CH:42][CH:41]=1.C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:33][C:32]1[CH:31]=[C:30]([CH3:34])[NH:29][C:28](=[O:35])[C:27]=1[CH2:26][NH:25][C:24]([C:4]1[C:5]([CH3:23])=[C:6]([N:8]([CH3:22])[CH:9]2[CH2:10][CH2:11][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:19])[CH3:20])=[O:16])[CH2:13][CH2:14]2)[CH:7]=[C:2]([C:43]2[CH:44]=[CH:45][C:40]([CH2:39][N:38]([CH3:55])[CH3:37])=[CH:41][CH:42]=2)[CH:3]=1)=[O:36]

Participants

Conditions

Temperature: 100 °C

Procedure

To a stirred solution of tert-butyl 4-((5-bromo-3-(((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)carbamoyl)-2-methylphenyl)(methyl)amino)piperidin-1-carboxylate (1 equiv.) and N,N-dimethyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanamine (1.2 equiv.) in dioxane/water mixture (5 mL+1 mL), Na2CO3 (3.6 equiv.) was added and solution purged with argon for 15 min. Then Pd(PPh3)4 (0.1 equiv.) was added and argon was purged again for 10 min. The reaction was heated at 100° C. for 5 h. After cooling, the reaction mixture was diluted with water, and the product was extracted with 10% MeOH/DCM. The combined organic layers were dried over Na2SO4 and the solvent removed under reduced pressure to afford crude product which was purified by column chromatography over silica gel to afford tert-butyl 4-((5-(((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)carbamoyl)-4′-((dimethylamino)methyl)-4-methyl-[1,1′-biphenyl]-3-yl)(methyl)amino)piperidine-1-carboxylate. A stirred solution of this compound (1 mmol) in DCM (5 mL) was cooled to 0° C. and TFA (2 mL) was added to it. The reaction was stirred at room temperature for 1 h. On completion, the solution was concentrated to dryness. The residue was purified by solvent washings to afford the title compound (0.06 g, 90%). LCMS: 516.35 (M+1)+; HPLC: 98.28% (@ 254 nm) (Rt; 3.930; Method: Column: YMC ODS-A 150 mm×4.6 mm×5μ; Mobile Phase: A; 0.05% TFA in water/B; 0.05% TFA in acetonitrile; Inj. Vol: 10 μL, Col. Temp.: 30° C.; Flow rate: 1.4 mL/min.; Gradient: 5% B to 95% B in 8 min, Hold for 1.5 min, 9.51-12 min 5% B); 1H NMR (DMSO-d6, 400 MHz) δ 11.46 (s, 1H), 9.82 (bs, 1H), 8.51 (bs, 1H), 8.17 (s, 2H), 7.77 (d, 2H, J=7.2 Hz), 7.55 (d, 2H, J=7.6 Hz), 7.43 (s, 1H), 7.27 (s, 1H), 5.86 (s, 1H), 4.30 (m, 4H), 3.25 (4H merged in solvent peak), 2.88-2.91 (m, 1H), 2.75 (s, 6H), 2.64 (s, 3H), 2.25 (s, 3H), 2.20 (s, 3H), 2.10 (s, 3H), 1.81 (m, 4H).

Workup

customsolution purged with argon for 15 min
customargon was purged again for 10 min
temperatureAfter cooling
additionthe reaction mixture was diluted with water
extractionthe product was extracted with 10% MeOH/DCM
dry with materialThe combined organic layers were dried over Na2SO4
customthe solvent removed under reduced pressure
customto afford crude product which
customwas purified by column chromatography over silica gel

Sources & evidence

ORD record: ord-43293bedb43a41c98dd8174a30616b2e
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08765732B2

Reaction notes

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