Triethylamine → S-3304

HRID 1617285

Reaktionsgleichung

Reaktionsgleichung von HRID 1617285
Br[C:2]1[S:6][C:5]([S:7]([NH:10][C@H:11]([CH2:15][C:16]2[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[NH:18][CH:17]=2)[C:12]([OH:14])=[O:13])(=[O:9])=[O:8])=[CH:4][CH:3]=1.[C:25]1([CH3:33])[CH:30]=[CH:29][C:28]([C:31]#[CH:32])=[CH:27][CH:26]=1.C(N(CC)CC)C>CN(C=O)C.C(OCC)(=O)C.[Cu]I>[NH:18]1[C:19]2[C:24](=[CH:23][CH:22]=[CH:21][CH:20]=2)[C:16]([CH2:15][C@@H:11]([NH:10][S:7]([C:5]2[S:6][C:2]([C:32]#[C:31][C:28]3[CH:29]=[CH:30][C:25]([CH3:33])=[CH:26][CH:27]=3)=[CH:3][CH:4]=2)(=[O:9])=[O:8])[C:12]([OH:14])=[O:13])=[CH:17]1

Komponenten

7

Edukt 3

HCID 8471TriethylamineHCID 13018p-EthynyltolueneHCID 11396269(R)-2-(5-Bromo-thiophene-2-sulfonylamino)-3-(1H-indol-3-yl)-propionic acid

Produkt 1

HCID 10718956S-3304Ausbeute 55,4 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

In a round bottom flask was added crude (R)-2-(5-Bromo-thiophene-2-sulfonylamino)-3-(1H-indol-3-yl)-propionic acid (3) (60 mg, 0.14 mmol), p-tolyl acetylene 4 (480 mg, 0.41 mmol), PdCl2P(PPh3)2 (10 mg, 0.015 mmol), copper(I)iodide (2 mg, 0.01 mmol) and triethylamine (0.025 g, 0.25 mmol) and then dissolved in dry DMF (2 mL) under an atmosphere of nitrogen. The reaction mixture was then heated at 50° C. under a nitrogen atmosphere for 2 hours. The reaction mixture was then cooled to room temperature and diluted with ethyl acetate and washed with a solution composed of NaCl/NaHCO3/(NH4)2CO3/water (1:1:1:1) (×3), water, and then dried over sodium sulfate (Na2SO4). The crude product was purified using a SAX column to provide to give the desired (R)-3-(1H-Indol-3-yl)-2-(5-p-tolylethynyl-thiophene-2-sulfonylamino)-propionic acid 5 (0.036 g, 55%).

Aufarbeitung

  1. temperatureThe reaction mixture was then cooled to room temperature
  2. washwashed with a solution
  3. dry with materialdried over sodium sulfate (Na2SO4)
  4. customThe crude product was purified
  5. customto provide

Quellen und Nachweise

ORD-Eintrag
ord-2b120fd0b58f4976bcf5c3117d058314
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08765953B2

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