Triethylamine → HCID 58437200, Verbindung

HRID 1617286

Reaktionsgleichung

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]([Si:27]([CH3:30])([CH3:29])[CH3:28])#[CH:26].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:26]#[C:25][Si:27]([CH3:30])([CH3:29])[CH3:28])=[CH:3][CH:4]=2)(=[O:9])=[O:8])[C:12]([OH:14])=[O:13])=[CH:17]1

Komponenten

Reaktionsbedingungen

Temperatur: 50 °C

Versuchsvorschrift

In a round bottom flask was added crude compound (R)-2-(5-Bromo-thiophene-2-sulfonylamino)-3-(1H-indol-3-yl)-propionic acid product (3) (0.25 g, 0.584 mmol) (synthesized via Example 1, Step A), commercially available ethynyltrimethylsilane (0.17 g, 1.73 mmol), PdCl2P(PPh3)2 (0.041 g, 0.061 mmol), copper(I)iodide (0.006 g, 0.0315 mmol), and triethylamine (0.177 g, 1.75 mmol) dissolved in dry DMF (3 mL) under an atmosphere of nitrogen and mixture heated at 50° C. for two hours. The reaction mixture was then diluted with ethyl acetate and washed with a solution composed of NaCl/NaHCO3/(NH4)2CO3/water (1:1:1:1) (×3), water, brine, and dried (Na2SO4) to give the desired crude (R)-3-(1H-Indol-3-yl)-2-(5-trimethylsilanylethynyl-thiophene-2-sulfonylamino)-propionic acid 115 (185 mg, 71%). LC-MS (ES+) 447; (ES−) 445.

Aufarbeitung

washwashed with a solution
dry with materialdried (Na2SO4)

Quellen und Nachweise

ORD-Eintrag: ord-97876f4fc56f4afab739673e7dec3ee2
Quelldatensatz: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08765953B2

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