Reaktion #69847

Reaktionsgleichung

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

Ausbeute 68.0%

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

Ausbeute 68.0%

Lösungsmittel

MeOH

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe solvent was evaporated under reduced pressure
2. 2
   workup.ADDITIONWater was added
3. 3
   Extraktionthe mixture was extracted with ethyl acetate
4. 4
   TrocknenThe combined organic layer was dried over anhydrous sodium sulfate
5. 5
   Filtrationfiltered
6. 6
   Einengenconcentrated under reduced pressure
7. 7
   WaschenThe crude product was washed with hexane

Vorschrift

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].

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