Reaktion #326001

Reaktionsgleichung

K3PO4

(S)—N-(1-(3-bromo-4-fluorophenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)-2-phenylethyl)-4-fluoro-3-(trifluoromethyl)benzamide

cyclopropylboronic acid

tricyclohexylphosphine

→

(R)—N-(1-(3-cyclopropyl-4-fluorophenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)-2-phenylethyl)-4-fluoro-3-(trifluoromethyl)benzamide

Ausbeute 30.0%

Lösungsmittel

toluene

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeprepared
2. 2
   FiltrationThe reaction mixture was filtered
3. 3
   Einengenconcentrated
4. 4
   Sonstigethe resulting residue was purified by preparative HPLC (Sunfire-S5-C18 18×50 mm column, eluting with 10-90% MeOH/H2O gradient over 8 min, with flow rate 20 mL/min and UV detection at 220 nm)

Vorschrift

To a mixture of (S)—N-(1-(3-bromo-4-fluorophenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)-2-phenylethyl)-4-fluoro-3-(trifluoromethyl)benzamide, prepared as described in Procedures 3, 62, 5, 6 and 7, (50 mg, 0.07 mmol), (50 mg, 0.07 mmol), cyclopropylboronic acid (6 mg, 0.07 mmol), palladium (II) acetate (1 mg, 0.004 mmol) and tricyclohexylphosphine (2 mg, 0.007 mmol) in toluene (2 mL) was added K3PO4 (0.072 mL, 0.22 mmol). The reaction mixture was heated at 100° C. under microwave irradiation for 15 min. The reaction mixture was filtered, concentrated and the resulting residue was purified by preparative HPLC (Sunfire-S5-C18 18×50 mm column, eluting with 10-90% MeOH/H2O gradient over 8 min, with flow rate 20 mL/min and UV detection at 220 nm) to yield (R)—N-(1-(3-cyclopropyl-4-fluorophenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)-2-phenylethyl)-4-fluoro-3-(trifluoromethyl)benzamide (Example 309, 14 mg, 30% yield). LCMS: RT=4.37 min [M+H] 656.38 (Waters Sunfire-S5-C18 4.6×50 mm, eluting with 10-90% MeOH/H2O over 4 minutes containing 0.1% TFA; 4 mL/min, monitoring at 220 nm). 1H NMR (500 MHz, CDCl3) δ ppm 7.90 (1H, dd, J=6.60, 1.92 Hz), 7.81-7.84 (1H, m), 7.22-7.30 (5H, m), 7.16 (2H, t, J=7.56 Hz), 6.93-7.00 (4H, m), 6.77-6.81 (1H, m), 6.68 (2H, d, J=7.42 Hz), 6.62 (1H, s), 6.54 (1H, dd, J=6.87, 2.47 Hz), 5.88 (1H, t, J=52.73 Hz), 4.08 (1H, d, J=13.20 Hz), 3.66 (1H, d, J=13.20 Hz), 2.03 (1H, ddd, J=13.75, 8.52, 5.22 Hz), 0.92-0.96 (2H, m), 0.52-0.56 (1H, m), 0.43-0.47 (1H, m).

Quelle