Tetrahydrofuran → 5-(3-(4-(5-Fluoro-pyridin-2-ylmethoxy)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 78191Notes

Reaction equation

HRID 78191 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][C:5]([C:8]2[O:12][N:11]=[C:10]([CH2:13][C:14]3[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][CH:15]=3)[CH:9]=2)=[CH:4][CH:3]=1.O1CCCC1.[OH-].[Na+].Cl[CH2:29][C:30]1[CH:35]=[CH:34][C:33]([F:36])=[CH:32][N:31]=1>CN(C)C=O>[F:36][C:33]1[CH:34]=[CH:35][C:30]([CH2:29][O:20][C:17]2[CH:18]=[CH:19][C:14]([CH2:13][C:10]3[CH:9]=[C:8]([C:5]4[CH:4]=[CH:3][C:2]([NH2:1])=[N:7][CH:6]=4)[O:12][N:11]=3)=[CH:15][CH:16]=2)=[N:31][CH:32]=1

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 216980592-(Chloromethyl)-5-fluoropyridineHCID 592554134-(5-(6-Amino-pyridin-3-yl)-isoxazol-3-ylmethyl)-phenol

Product 1

HCID 592551795-(3-(4-(5-Fluoro-pyridin-2-ylmethoxy)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamineYield 11.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
60 °C

Procedure

To 4-(5-(6-amino-pyridin-3-yl)-isoxazol-3-ylmethyl)-phenol (20.0 mg, 0.07 mmol) described in Manufacturing Example 177-1-1 were added tetrahydrofuran (3 mL) and a 5 N sodium hydroxide aqueous solution (14.9 μL, 0.07 mmol), which was dissolved by irradiating ultrasonic wave for 1 minute. The reaction solution was concentrated under a reduced pressure, which gave a white solid. To a mixture of the solid obtained above and N,N-dimethylformamide (1 mL) was added an N,N-dimethylformamide (1 mL) solution of the 2-chloromethyl-5-fluoro-pyridine (12.0 mg, 0.08 mmol) described in Manufacturing Example 41-1-2, which was stirred for 1 hour at 60° C. The reaction mixture was cooled to room temperature and then partitioned into water and ethyl acetate. The organic layer was separated, washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1) to obtain the title compound (3.0 mg, 11%).

Workup

  1. customby irradiating ultrasonic wave for 1 minute
  2. concentrationThe reaction solution was concentrated under a reduced pressure, which
  3. customgave a white solid
  4. additionTo a mixture of the solid
  5. temperatureThe reaction mixture was cooled to room temperature
  6. custompartitioned into water and ethyl acetate
  7. customThe organic layer was separated
  8. washwashed with water and saturated aqueous sodium chloride
  9. dry with materialdried over anhydrous magnesium sulfate
  10. filtrationfiltered
  11. concentrationThe filtrate was concentrated under a reduced pressure
  12. customthe residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1)

Sources & evidence

ORD record
ord-cd319e7862c94ae5b40eb0affc8d5873
Source dataset
uspto-grants-2014_09
Patent number
US08841327B2

Reaction notes

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