反応 #163228

反応方程式

sodium carbonate

(5-Bromo-pyridin-2-yl)-(2-methyl-6-trifluoromethyl-pyridin-3-yl)-amine

{4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-cyclohexyl}-acetic acid methyl ester

→

compound

(4-{4-[6-(2-Methyl-6-trifluoromethyl-pyridin-3-ylamino)-pyridin-3-yl]-phenyl}-cyclohexyl)-acetic acid methyl ester

溶媒

DME

反応条件

後処理

1. 1
   その他The mixture was sparged with nitrogen for 10 minutes
2. 2
   その他the vessel was sealed
3. 3
   その他The mixture was partitioned between EtOAc and water
4. 4
   洗浄washed with brine
5. 5
   乾燥dried with magnesium sulfate
6. 6
   ろ過filtered
7. 7
   濃縮concentrated via rotary evaporation
8. 8
   その他The crude material was purified via column chromatography on silica gel
9. 9
   洗浄eluting with a gradient of EtOAc/hexanes (7-50%)

実験手順

(5-Bromo-pyridin-2-yl)-(2-methyl-6-trifluoromethyl-pyridin-3-yl)-amine (290 mg, 0.87 mmol) and {4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-cyclohexyl}-acetic acid methyl ester (312 mg, 0.87 mmol) were dissolved in anhydrous DME (3 mL) in a pressure vessel. PdCl2dppf (21 mg, 0.026 mmol) was added, followed by aqueous sodium carbonate (2M, 0.870 mL, 1.74 mmol). The mixture was sparged with nitrogen for 10 minutes, then the vessel was sealed and heated at 80° C. for 18 hours. The mixture was partitioned between EtOAc and water, washed with brine, dried with magnesium sulfate, filtered, and concentrated via rotary evaporation. The crude material was purified via column chromatography on silica gel, eluting with a gradient of EtOAc/hexanes (7-50%) to obtain the target compound as a solid: 1H NMR (400 MHz, DMSO-d6) δ ppm 1.08-1.21 (m, 2H) 1.50 (td, J=12.44, 10.23 Hz, 2H) 1.81 (m, 4H) 2.25 (d, J=6.57 Hz, 2H) 2.59 (s, 3H) 3.60 (s, 3H) 7.22 (d, J=8.59 Hz, 1H) 7.31 (d, J=8.34 Hz, 2H) 7.57 (d, J=8.34 Hz, 2H) 7.66 (d, J=8.59 Hz, 1H) 7.97 (dd, J=8.59, 2.53 Hz, 1H) 8.48 (d, J=2.53 Hz, 1H) 8.64 (s, 1H) 8.66 (d, J=8.34 Hz, 1H); MS-(M+H)+484.3.

出典