反応 #797848

反応方程式

1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]-2-[5-methyl-3-(trifluoromethyl)pyrazol-1-yl]ethanone

4-(iodomethyl)tetrahydro-2H-pyran

NaH

→

desired product

収率 6.0%

1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]-2-[5-methyl-3-(trifluoromethyl)pyrazol-1-yl]-3-tetrahydropyran-4-yl-propan-1-one

収率 6.0%

溶媒

DMF

反応条件

後処理

1. 1
   その他It was then quenched with sat. NH4Cl
2. 2
   その他The mixture was partitioned between EtOAc (50 mL) and brine (30 mL)
3. 3
   その他The organic layer was separated
4. 4
   乾燥dried over Na2SO4
5. 5
   濃縮concentrated in vacuo
6. 6
   その他purified by reverse phase HPLC

実験手順

A mixture of 1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]-2-[5-methyl-3-(trifluoromethyl)pyrazol-1-yl]ethanone (0.100 g, 0.25 mmol), 4-(iodomethyl)tetrahydro-2H-pyran (0.165 g, 0.75 mmol) and NaH (0.030 g, 0.75 mmol, 60% in mineral oil) in DMF (0.8 mL) was stirred at rt for 1.5 hrs. It was then quenched with sat. NH4Cl. The mixture was partitioned between EtOAc (50 mL) and brine (30 mL). The organic layer was separated, dried over Na2SO4, concentrated in vacuo, and purified by reverse phase HPLC to afford the desired product (0.007 g, 6%). 1H NMR (400 MHz, CDCl3) δ 8.44 (s, 1H), 7.43 (dd, J=8.8, 4.8 Hz, 2H), 7.16 (dd, J=8.8, 8.4 Hz, 2H), 6.31 (s, 1H), 5.54 (m, 1H), 3.95 (m, 2H), 3.78 (m, 1H), 3.47 (m, 1H), 3.34 (m, 2H), 2.75 (m, 2H), 2.30 (s, 3H), 2.20 (m, 3H), 1.88 (m, 3H), 1.40 (m, 3H); MS: (ES) m/z calculated for C25H27F4N5O2 [M+H]+ 506.2, found 506.2.

出典