反応 #69847

反応方程式

2-((2-bromopyridin-4-yl)methyl)-9-(quinoxalin-2-yl)-2,9-diazaspiro[5.5]undecan-1-one

2-((2-bromopyridin-4-yl)methyl)-9-(quinoxalin-2-yl)-2,9-diazaspiro[5.5]undecan-1-one

NaOMe

→

title compound

収率 68.0%

2-((2-methoxypyridin-4-yl)methyl)-9-(quinoxalin-2-yl)-2,9-diazaspiro[5.5]undecan-1-one

収率 68.0%

溶媒

MeOH

反応条件

後処理

1. 1
   その他the solvent was evaporated under reduced pressure
2. 2
   workup.ADDITIONWater was added
3. 3
   抽出the mixture was extracted with ethyl acetate
4. 4
   乾燥The combined organic layer was dried over anhydrous sodium sulfate
5. 5
   ろ過filtered
6. 6
   濃縮concentrated under reduced pressure
7. 7
   洗浄The crude product was washed with hexane

実験手順

The title compound was synthesized from 2-((2-bromopyridin-4-yl)methyl)-9-(quinoxalin-2-yl)-2,9-diazaspiro[5.5]undecan-1-one (prepared according to method D) as follows: A stirred solution of 2-((2-bromopyridin-4-yl)methyl)-9-(quinoxalin-2-yl)-2,9-diazaspiro[5.5]undecan-1-one (synthesized according to method D) (70 mg, 0.15 mmol) and NaOMe (40.6 mg, 0.75 mmol) in MeOH (2 mL) was heated at 100° C. for 18 h. The reaction mixture was cooled to rt and the solvent was evaporated under reduced pressure. Water was added and the mixture was extracted with ethyl acetate. The combined organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The crude product was washed with hexane to yield the title compound (55 mg, 68%). [1H NMR (300 MHz, CDCl3) ♀ ppm 8.60 (s, 1H), 8.12 (d, 1H), 7.85 (d, 1H), 7.68 (d, 1H), 7.56 (t, 1H), 7.38 (t, 1H), 6.75 (d, 1H), 6.55 (s, 1H), 4.56 (s, 2H), 4.31-4.13 (m, 2H), 3.92 (s, 3H), 3.70-3.55 (m, 2H), 3.25 (br s, 2H), 2.40-2.25 (m, 2H), 1.98-1.80 (m, 4H), 1.78-1.50 (m, 2H); LCMS RtF=1.30 min, [M+H]+=418.0].

出典