Ethylene Glycol → HCID 72202876, Verbindung

Reaktionsgleichung

[H-].[Na+].[CH2:3]([OH:6])[CH2:4][OH:5].Cl[C:8]1[N:13]=[CH:12][C:11]([C:14]2[CH:15]=[C:16]([CH:31]=[CH:32][CH:33]=2)[C:17]([NH:19][C:20]2[CH:25]=[CH:24][C:23]([O:26][C:27]([F:30])([F:29])[F:28])=[CH:22][CH:21]=2)=[O:18])=[CH:10][N:9]=1>C1COCC1>[OH:5][CH2:4][CH2:3][O:6][C:8]1[N:9]=[CH:10][C:11]([C:14]2[CH:15]=[C:16]([CH:31]=[CH:32][CH:33]=2)[C:17]([NH:19][C:20]2[CH:21]=[CH:22][C:23]([O:26][C:27]([F:30])([F:28])[F:29])=[CH:24][CH:25]=2)=[O:18])=[CH:12][N:13]=1

Komponenten

Versuchsvorschrift

To a suspension of NaH 60% in oil (12.19 mg, 0.508 mmol) in THF (200 μL) was added ethylene glycol (21.24 μL, 0.381 mmol). A solution of 3-(2-chloropyrimidin-5-yl)-N-(4-(trifluoromethoxy)phenyl)benzamide (Stage 2.1, 50 mg, 0.127 mmol) in THF (2.5 mL) was then added and the RM was stirred at RT overnight. Additional ethylene glycol (200 μL, 3.59 mmol) was added and the reaction was stirred at RT for 4 h. The reaction was quenched with HCOOH and the solvent was evaporated off under reduced pressure. The residue was treated with saturated aq. NaHCO3 (10 mL) and extracted with TBME/EtOAc (1:1). The combined extracts were washed with brine, dried over MgSO4 and the solvent was evaporated off under reduced pressure to give the crude product which was purified by flash chromatography (Silica gel column, 4 g, DCM/MeOH+1% NH4OH, from 1% to 12% MeOH+1% NH4OH) to afford the title compound as a white solid. UPLC-MS (Condition 1) tR=2.44 min, m/z=420.1 [M+H]+, m/z=418.1 [M−H]−; 1H-NMR (400 MHz, DMSO-d6) δ ppm 3.76 (dd, 2H) 4.40 (t, 2H) 4.92 (t, J=5.5 Hz, 1H) 7.39 (d, J=8.6 Hz, 2H) 7.64-7.70 (m, 1H) 7.91 (d, J=9.0 Hz, 2H) 7.97 (d, J=8.1 Hz, 2H) 8.28 (s, 1H) 9.04 (s, 2H) 10.48 (s, 1H).