Sodium Carbonate → (1S,2S)-2-fluoro-N-(7-(5-fluoro-2-(hydroxymethyl)-4-methylpyridin-3-yl)isoquinolin-3-yl)cyclopropanecarboxamide

HRID 468949Notes

Reaction equation

HRID 468949 reaction equation
[F:1][C@H:2]1[CH2:4][C@H:3]1[C:5]([NH:7][C:8]1[N:9]=[CH:10][C:11]2[C:16]([CH:17]=1)=[CH:15][CH:14]=[C:13](B1OC(C)(C)C(C)(C)O1)[CH:12]=2)=[O:6].Br[C:28]1[C:29]([CH2:36][OH:37])=[N:30][CH:31]=[C:32]([F:35])[C:33]=1[CH3:34].C(=O)([O-])[O-].[Na+].[Na+]>C(#N)C.C(OCC)(=O)C.CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.Cl[Pd]Cl>[F:1][C@H:2]1[CH2:4][C@H:3]1[C:5]([NH:7][C:8]1[N:9]=[CH:10][C:11]2[C:16]([CH:17]=1)=[CH:15][CH:14]=[C:13]([C:28]1[C:29]([CH2:36][OH:37])=[N:30][CH:31]=[C:32]([F:35])[C:33]=1[CH3:34])[CH:12]=2)=[O:6]

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 67974745(3-Bromo-5-fluoro-4-methyl-2-pyridyl)methanolHCID 71115194(1S,2S)-2-fluoro-N-(7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)cyclopropanecarboxamide

Product 1

HCID 71115258(1S,2S)-2-fluoro-N-(7-(5-fluoro-2-(hydroxymethyl)-4-methylpyridin-3-yl)isoquinolin-3-yl)cyclopropanecarboxamideYield 11%

Reagents, catalysts & solvents 3

HCID 11714597Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II)CatalystHCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of (1S,2S)-2-fluoro-N-(7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinolin-3-yl)cyclopropanecarboxamide (230 mg, 0.648 mmol), (3-bromo-5-fluoro-4-methyl-2-pyridyl)methanol (143 mg, 0.648 mmol), bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) (46 mg, 0.065 mmol) and saturated aqueous sodium carbonate solution (0.3 mL) in acetonitrile (3 mL) was heated under microwave irradiation (Biotage) at 130° C. for 30 minutes. The reaction mixture was diluted with ethyl acetate (30 mL) and washed with water (15 mL). The organic layer was separated, dried over sodium sulfate, filtered and concentrated in vacuo to provide a residue that was purified by reverse phase HPLC (5-85% acetonitrile in water w/0.1% NH4OH, 14 min). Desired fractions were combined and evaporated in vacuo to afford the title compound as an off-white solid (26 mg, 11%). 1H NMR (400 MHz, DMSO) δ 10.98 (s, 1H), 9.16 (s, 1H), 8.54 (s, 2H), 7.99 (m, 2H), 7.59 (d, J=8.4 Hz, 1H), 5.08-4.81 (m, 2H), 4.24 (s, 2H), 2.34-2.22 (m, 1H), 2.00 (s, 3H), 1.70 (m, 1H), 1.20 (m, 1H). LCMS (Method E): RT=6.66 min, M+H+=370.0.

Workup

  1. washwashed with water (15 mL)
  2. customThe organic layer was separated
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customto provide a residue that
  7. customwas purified by reverse phase HPLC (5-85% acetonitrile in water w/0.1% NH4OH, 14 min)
  8. customevaporated in vacuo

Sources & evidence

ORD record
ord-fd0cbd16bba8425ca48e2ee2af557753
Source dataset
uspto-grants-2014_01
Patent number
US08623889B2

Reaction notes

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