Triethylamine → HCID 22315084, compound

HRID 966623Notes

Reaction equation

HRID 966623 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][N:3]=1.[CH:8]1([CH2:13][CH:14]([C:18]2[CH:23]=[CH:22][C:21]([S:24]([CH3:27])(=[O:26])=[O:25])=[CH:20][CH:19]=2)[C:15](O)=[O:16])[CH2:12][CH2:11][CH2:10][CH2:9]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(N(CC)CC)C>C(#N)C.O.C(Cl)(Cl)(Cl)Cl>[CH:8]1([CH2:13][CH:14]([C:18]2[CH:23]=[CH:22][C:21]([S:24]([CH3:27])(=[O:26])=[O:25])=[CH:20][CH:19]=2)[C:15]([NH:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][N:3]=2)=[O:16])[CH2:12][CH2:11][CH2:10][CH2:9]1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 104392-AminopyridineHCID 11776TriphenylphosphineHCID 120694893-Cyclopentyl-2-(4-methanesulfonyl-phenyl)propionic acid

Product 1

HCID 22315084HCID 22315084, compound

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 5943Carbon TetrachlorideSolventHCID 6342AcetonitrileSolvent

Conditions

Temperature
25 °C

Procedure

A solution of 2-aminopyridine (95 mg, 1.01 mmol) in acetonitrile (2 mL) was treated with 3-cyclopentyl-2-(4-methanesulfonyl-phenyl)propionic acid (prepared as in Example 3A, 250 mg, 0.84 mmol), triphenylphosphine (243 mg, 0.93 mmol), triethylamine (350 μL, 2.53 mmol), and carbon tetrachloride (1 mL). The resulting reaction mixture was stirred at 25° C. for 15 h. The cloudy reaction mixture was diluted with water and then extracted with methylene chloride. The organic layer was dried over magnesium sulfate, filtered, and concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 230-400 mesh, 1/3 hexanes/ethyl acetate) afforded impure 3-cyclopentyl-2-(4-methanesulfonyl-phenyl)-N-pyridin-2-yl-propionamide. Recrystallization from hexanes/methylene chloride provided pure 3-cyclopentyl-2-(4-methanesulfonyl-phenyl)-N-pyridin-2-yl-propionamide (170 mg, 54%) as a white solid: mp 172-173° C.; EI-HRMS m/e calcd for C20H24N2O3S (M+) 372.1508, found 372.1498.

Workup

  1. customThe resulting reaction mixture
  2. customThe cloudy reaction mixture
  3. extractionextracted with methylene chloride
  4. dry with materialThe organic layer was dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-56f5ddde7afe446191cc8bd0442dff2b
Source dataset
uspto-grants-2005_10
Patent number
US06951945B2

Reaction notes

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