Tetrahydrofuran → HCID 59255347, compound

HRID 1891703Notes

Reaction equation

HRID 1891703 reaction equation
O1CCCC1.[C:6]([C:8]1[C:9]([NH2:14])=[N:10][CH:11]=[CH:12][CH:13]=1)#[CH:7].[F:15][C:16]1[CH:17]=[C:18]([CH:31]=[CH:32][CH:33]=1)[O:19][C:20]1[N:25]=[CH:24][C:23]([CH2:26][C:27](Cl)=[N:28][OH:29])=[CH:22][CH:21]=1.C(N(CC)CC)C>O>[F:15][C:16]1[CH:17]=[C:18]([CH:31]=[CH:32][CH:33]=1)[O:19][C:20]1[N:25]=[CH:24][C:23]([CH2:26][C:27]2[CH:7]=[C:6]([C:8]3[C:9]([NH2:14])=[N:10][CH:11]=[CH:12][CH:13]=3)[O:29][N:28]=2)=[CH:22][CH:21]=1

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 124225263-Ethynylpyridin-2-amineHCID 72262903(6-(3-Fluoro-phenoxy)-pyridin-3-yl)-acetohydroximoyl chloride

Product 1

HCID 59255347HCID 59255347, compoundYield 53.6%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
50 °C

Procedure

To a tetrahydrofuran (4 mL) solution of 3-ethynyl-pyridin-2-ylamine (20 mg, 0.17 mmol) described in Manufacturing Example 1-2-3 and (6-(3-fluoro-phenoxy)-pyridin-3-yl)-acetohydroximoyl chloride (95 mg, 0.34 mmol) described in Manufacturing Example 71-1-4 was added triethylamine (47 μL, 0.34 mmol), which was stirred for 3 hours at 50° C. under nitrogen atmosphere. Water was added to the reaction solution at room temperature, which was then extracted with ethyl acetate. The organic layer was separated, washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the filtrate was purified by NH silica gel column chromatography (ethyl acetate:methanol=20:1) and further purified by reverse-phase high-performance liquid chromatography (using an acetonitrile-water mobile phase containing 0.1% trifluoracetc acid) to obtain the title compound (33 mg, 33%) as a ditrifluoracetic acid salt.

Workup

  1. extractionwhich was then extracted with ethyl acetate
  2. customThe organic layer was separated
  3. washwashed with saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated under a reduced pressure
  7. customthe filtrate was purified by NH silica gel column chromatography (ethyl acetate:methanol=20:1)
  8. customfurther purified by reverse-phase high-performance liquid chromatography (
  9. additioncontaining 0.1% trifluoracetc acid)

Sources & evidence

ORD record
ord-a0aeeb7e2e624e5abf691c51f9152d0a
Source dataset
uspto-grants-2013_08
Patent number
US08507530B2

Reaction notes

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