Tetrahydrofuran → HCID 59255385, compound

HRID 78096Notes

Reaction equation

HRID 78096 reaction equation
O1CCCC1.[NH2:6][C:7]1[C:12]([C:13]2[O:17][N:16]=[C:15]([CH2:18][C:19]3[CH:24]=[CH:23][C:22]([OH:25])=[CH:21][CH:20]=3)[CH:14]=2)=[CH:11][CH:10]=[C:9]([NH2:26])[N:8]=1.[OH-].[Na+].[Cl:29][C:30]1[CH:35]=[CH:34][N:33]=[C:32]([CH2:36]Cl)[CH:31]=1>CN(C)C=O>[Cl:29][C:30]1[CH:35]=[CH:34][N:33]=[C:32]([CH2:36][O:25][C:22]2[CH:23]=[CH:24][C:19]([CH2:18][C:15]3[CH:14]=[C:13]([C:12]4[C:7]([NH2:6])=[N:8][C:9]([NH2:26])=[CH:10][CH:11]=4)[O:17][N:16]=3)=[CH:20][CH:21]=2)[CH:31]=1

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 130529014-Chloro-2-(chloromethyl)pyridineHCID 592553274-(5-(2,6-Diamino-pyridine-3-yl)-isoxazol-3-ylmethyl)phenol

Product 1

HCID 59255385HCID 59255385, compoundYield 12%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
60 °C

Procedure

To a tetrahydrofuran (3 mL) solution of 4-(5-(2,6-diamino-pyridin-3-yl)-isoxazol-3-ylmethyl)-phenol (30 mg, 0.11 mmol) described in Manufacturing Example 18-1-1 was added a 5 N sodium hydroxide aqueous solution (21.2 μL, 0.11 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. An N,N-dimethylformamide (1 mL) solution of 4-chloro-2-chloromethyl-pyridine (34.3 mg, 0.21 mmol) described in Manufacturing Example 51-1-2 was added to a suspension of this solid in N,N-dimethylformamide (1 mL), which was stirred for 1 hour at 60° C. This 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. The residue was purified by NH silica gel column chromatography (heptane: ethyl acetate=1:2), and then further purified by reverse-phase high performance liquid chromatography (using an acetonitrile-water mobile phase containing 0.1% trifluoroacetic acid) to obtain the title compound (5.1 mg, 12%) as a trifluoro acetic acid salt.

Workup

  1. dissolutionwas dissolved
  2. customby irradiating ultrasonic wave for 1 minute
  3. concentrationThe reaction solution was concentrated under a reduced pressure, which
  4. customgave a white solid
  5. temperatureThis 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=1:2)
  13. customfurther purified by reverse-phase high performance liquid chromatography (
  14. additioncontaining 0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-572758074d414bd9bee279608d378968
Source dataset
uspto-grants-2014_09
Patent number
US08841327B2

Reaction notes

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