Potassium Carbonate → 3-{4-[1-(4'-Trifluoromethoxy-biphenyl-4-yloxy)-heptyl]-benzoylamino}-propionic acid methyl ester

Reaktionsgleichung

[CH3:1][O:2][C:3](=[O:30])[CH2:4][CH2:5][NH:6][C:7](=[O:29])[C:8]1[CH:13]=[CH:12][C:11]([CH:14]([O:21][C:22]2[CH:27]=[CH:26][C:25](Br)=[CH:24][CH:23]=2)[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])=[CH:10][CH:9]=1.C(=O)([O-])[O-].[K+].[K+].[F:37][C:38]([F:50])([F:49])[O:39][C:40]1[CH:45]=[CH:44][C:43](B(O)O)=[CH:42][CH:41]=1>>[CH3:1][O:2][C:3](=[O:30])[CH2:4][CH2:5][NH:6][C:7](=[O:29])[C:8]1[CH:13]=[CH:12][C:11]([CH:14]([O:21][C:22]2[CH:27]=[CH:26][C:25]([C:43]3[CH:42]=[CH:41][C:40]([O:39][C:38]([F:37])([F:49])[F:50])=[CH:45][CH:44]=3)=[CH:24][CH:23]=2)[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH3:20])=[CH:10][CH:9]=1

Komponenten

Edukt 3

HCID 11430Potassium Carbonate

HCID 27343864-(Trifluoromethoxy)phenylboronic acid

HCID 671533873-{4-[1-(4-Bromo-phenoxy)-heptyl]-benzoylamino}-propionic acid methyl ester

Produkt 1

HCID 671534443-{4-[1-(4'-Trifluoromethoxy-biphenyl-4-yloxy)-heptyl]-benzoylamino}-propionic acid methyl esterAusbeute 34,2 %

Versuchsvorschrift

3-{4-[1-(4-Bromo-phenoxyl)-heptyl]-benzoylamino}-propionic acid methyl ester (isomer 1, 100 mg, 0.21 mmol), potassium carbonate (85 mg, 0.63 mmol), 4-triflouromethoxylphenyl boronic acid (86 mg, 0.42 mmol) and tetrakis-(triphenylphosphine)palladium (24 mg, 0.021 mmol) are place in a flask. After the reaction is purged with N2 for several times, THF/H2O (20 ml/5 ml) is added. The resulting solution is refluxed overnight, concentrated and acidified by 1 N HCl (0.6 mL), extracted with ethyl acetate. Combined organic layers are washed with water and brine, dried over sodium sulfate, purified by reverse phase HPLC to give the title compound (40 mg). MS (ES): 526.2 [M−H]−.