Triethylamine → 3-(3-(4-(2-(Tetrahydrofuran-2-yl)-ethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 78033Notes

Reaction equation

HRID 78033 reaction equation
[C:1]([C:3]1[C:4]([NH2:9])=[N:5][CH:6]=[CH:7][CH:8]=1)#[CH:2].[O:10]1[CH2:14][CH2:13][CH2:12][CH:11]1[CH2:15][CH2:16][C:17]1[CH:22]=[CH:21][C:20]([CH2:23][C:24](Cl)=[N:25][OH:26])=[CH:19][CH:18]=1.C(N(CC)CC)C>O1CCCC1>[O:10]1[CH2:14][CH2:13][CH2:12][CH:11]1[CH2:15][CH2:16][C:17]1[CH:22]=[CH:21][C:20]([CH2:23][C:24]2[CH:2]=[C:1]([C:3]3[C:4]([NH2:9])=[N:5][CH:6]=[CH:7][CH:8]=3)[O:26][N:25]=2)=[CH:19][CH:18]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 124225263-Ethynylpyridin-2-amineHCID 72262847(4-(2-Tetrahydrofuran-2-yl-ethyl)phenyl)-acetohydroximoyl chloride

Product 1

HCID 592553103-(3-(4-(2-(Tetrahydrofuran-2-yl)-ethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamineYield 53%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
60 °C

Procedure

To an anhydrous tetrahydrofuran (5 mL) solution of 3-ethynyl-pyridin-2-ylamine described in Manufacturing Example 1-2-3 (43.7 mg, 0.37 mmol) was added (4-(2-tetrahydrofuran-2-yl-ethyl)phenyl)-acetohydroximoyl chloride (300 mg, 1.12 mmol) described in Manufacturing Example 82-1-6 under nitrogen atmosphere at room temperature. Triethylamine (0.31 mL, 2.24 mmol) was then added dropwise and stirred for 2 hours at 60° C. The reaction mixture was partitioned into water and ethyl acetate at room temperature. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:heptane=1:9 then 3:7) to obtain the title compound (68 mg, 53%).

Workup

  1. customdescribed in Manufacturing Example 82-1-6 under nitrogen atmosphere at room temperature
  2. customThe reaction mixture was partitioned into water and ethyl acetate at room temperature
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under a reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate

Sources & evidence

ORD record
ord-07e28a10adca4558a842c01fb558e476
Source dataset
uspto-grants-2014_09
Patent number
US08841327B2

Reaction notes

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