Water → HCID 42630777, compound

HRID 1521105Notes

Reaction equation

HRID 1521105 reaction equation
C[Al](C)C.[F:5][C:6]([F:10])([F:9])[CH2:7][NH2:8].C[O:12][C:13](=O)[C:14]1[CH:19]=[CH:18][C:17]([O:20][CH2:21][C:22]2[C:23]([C:28]3[CH:33]=[CH:32][C:31]([F:34])=[C:30]([F:35])[CH:29]=3)=[N:24][O:25][C:26]=2[CH3:27])=[N:16][CH:15]=1.O>O1CCOCC1>[F:35][C:30]1[CH:29]=[C:28]([C:23]2[C:22]([CH2:21][O:20][C:17]3[CH:18]=[CH:19][C:14]([C:13]([NH:8][CH2:7][C:6]([F:10])([F:9])[F:5])=[O:12])=[CH:15][N:16]=3)=[C:26]([CH3:27])[O:25][N:24]=2)[CH:33]=[CH:32][C:31]=1[F:34]

Participants

6

Reactant 4

HCID 962WaterHCID 9773Ethanamine, 2,2,2-trifluoro-HCID 16682925TrimethylaluminumHCID 684427496-[3-(3,4-Difluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester

Product 1

HCID 42630777HCID 42630777, compoundYield 63%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent2×

Procedure

A solution of trimethylaluminium (2 M in toluene, 1.1 mL, 2.2 mmol) was added dropwise (exothermic) to a solution of 2,2,2-trifluoroethylamine (250 mg, 2.2 mmol) in dioxane (10 mL) and the resulting mixture was stirred at room temperature for 1 h. Then a solution of 6-[3-(3,4-difluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (200 mg, 0.56 mmol) in dioxane (10 mL) was added. The resulting mixture was then heated at 85-95° C. for 16 h and then cooled to room temperature and then poured into water and extracted with ethyl acetate which was then washed with brine, dried over sodium sulfate and evaporated. Purification by chromatography (SiO2, heptane:ethyl acetate=95:5 to 1:1) afforded the title compound (150 mg, 63%) which was obtained as a white solid. MS: m/e=482.2 [M+H]′.

Workup

  1. temperatureThe resulting mixture was then heated at 85-95° C. for 16 h
  2. temperaturecooled to room temperature
  3. extractionextracted with ethyl acetate which
  4. washwas then washed with brine
  5. dry with materialdried over sodium sulfate
  6. customevaporated
  7. customPurification by chromatography (SiO2, heptane:ethyl acetate=95:5 to 1:1)

Sources & evidence

ORD record
ord-899f77a4ada8480e93986031d532ff85
Source dataset
uspto-grants-2015_07
Patent number
US09073908B2

Reaction notes

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