Triethylamine → HCID 71586182, compound

HRID 1465552Notes

Reaction equation

HRID 1465552 reaction equation
[CH3:1][O:2][C:3]1[N:4]=[CH:5][C:6]([O:9][C:10]2[CH:15]=[C:14]([CH3:16])[C:13]([C:17]3[N:18]=[C:19]([NH2:22])[S:20][CH:21]=3)=[C:12]([CH3:23])[CH:11]=2)=[N:7][CH:8]=1.C(N(CC)CC)C.Cl.[C:32](Cl)(=[O:39])[C:33]1[CH:38]=[CH:37][N:36]=[CH:35][CH:34]=1>C1COCC1>[CH3:1][O:2][C:3]1[N:4]=[CH:5][C:6]([O:9][C:10]2[CH:15]=[C:14]([CH3:16])[C:13]([C:17]3[N:18]=[C:19]([NH:22][C:32](=[O:39])[C:33]4[CH:38]=[CH:37][N:36]=[CH:35][CH:34]=4)[S:20][CH:21]=3)=[C:12]([CH3:23])[CH:11]=2)=[N:7][CH:8]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 12262826Isonicotinoyl chloride hydrochlorideHCID 86690856HCID 86690856, compound

Product 1

HCID 71586182HCID 71586182, compoundYield 23%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of 4-{4-((5-methoxypyrazin-2-yl)oxy)-2,6-dimethylphenyl}thiazol-2-amine (15-3, 0.40 g, 1.22 mmol) in THF (6.1 mL) was added triethylamine (0.370 g, 3.65 mmol) followed by isonicotinoyl chloride hydrochloride (0.430 g, 2.42 mmol). The reaction mixture was stirred at 60° C. overnight. The solution was concentrated under reduced pressure, added with water, and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous MgSO4(s), and concentrated under reduced pressure. The resultant precipitate was purified by column chromatography on silica gel (EtOAc:hexanes=5:1 as eluant) to give N-(4-(4-(5-methoxypyrazin-2-yloxy)-2,6-dimethylphenyl)thiazol-2-yl)isonicotinamide (15, 0.12 g) as yellow solids in 23% yield: 1H NMR (500 MHz, CDCl3) δ 8.87 (d, J=5.0 Hz, 2 H), 8.03 (d, J=6.5 Hz, 2 H), 7.96 (s, 1 H), 7.91 (s, 1 H), 6.81 (s, 3 H), 3.97 (s, 3 H), 2.08 (s, 6 H). ESI-MS: m/z 433.4 (M+H)+.

Workup

  1. concentrationThe solution was concentrated under reduced pressure
  2. additionadded with water
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with brine
  5. dry with materialdried over anhydrous MgSO4(s)
  6. concentrationconcentrated under reduced pressure
  7. customThe resultant precipitate was purified by column chromatography on silica gel (EtOAc:hexanes=5:1 as eluant)

Sources & evidence

ORD record
ord-7b9e11c652dc4f49a5412e86428f1287
Source dataset
uspto-grants-2015_04
Patent number
US08999983B2

Reaction notes

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