Sodium t-butoxide → 2-[5-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-pyridin-2-yl]-8-oxa-2-aza-spiro[4.5]decan-1-one

HRID 2401136ノート

反応式

HRID 2401136 の反応式
Br[C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:12][CH2:11][C:10]3([CH2:17][CH2:16][O:15][CH2:14][CH2:13]3)[C:9]2=[O:18])=[N:6][CH:7]=1.[CH3:19][C@H:20]1[CH2:24][CH2:23][CH2:22][N:21]1[C@H:25]1[CH2:29][CH2:28][NH:27][CH2:26]1.CC(C)([O-])C.[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(C)C=CC=CC=1>[CH3:19][C@H:20]1[CH2:24][CH2:23][CH2:22][N:21]1[C@H:25]1[CH2:29][CH2:28][N:27]([C:2]2[CH:3]=[CH:4][C:5]([N:8]3[CH2:12][CH2:11][C:10]4([CH2:17][CH2:16][O:15][CH2:14][CH2:13]4)[C:9]3=[O:18])=[N:6][CH:7]=2)[CH2:26]1

参加物

6

反応物 3

HCID 23676156Sodium t-butoxideHCID 59401808(2S,3'S)-2-Methyl-[1,3]bipyrrolidinylHCID 674786592-(5-Bromo-pyridin-2-yl)-8-oxa-2-aza-spiro[4.5]decan-1-one

生成物 1

HCID 545911532-[5-((2S,3'S)-2-Methyl-[1,3']bipyrrolidinyl-1'-yl)-pyridin-2-yl]-8-oxa-2-aza-spiro[4.5]decan-1-one

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 1140Toluene溶媒

反応条件

温度
90 °C

実験手順

A mixture of 2-(5-bromo-pyridin-2-yl)-8-oxa-2-aza-spiro[4.5]decan-1-one (0.05 g, 0.161 mmol), (2S,3′S)-2-Methyl-[1,3′]bipyrrolidinyl (0.037 g, 0.242 mmol), (−)R-BINAP (0.006 g, 0.01 mmol), and anhydrous toluene (3 mL) was de-gassed and refilled with N2 in three cycles. Pd2(dba)3 (0.003 g, 0.0032 mmol,), and sodium t-butoxide (0.023 g, 0.242 mmol) was then added to the mixture and de-gassed and refilled with N2 in three additional cycles. The reaction mixture was heated and stirred at 90° C. for 16 hours. The reaction mixture was allowed to cool to room temperature and quenched with water (1 mL). The aqueous phase was extracted with dichloromethane (3×10 mL). The combined organics were washed with sodium bicarbonate (5 mL), and brine (10 mL), dried over Na2SO4, concentrated under vacuum. Purification by column chromatography on silica gel (0-10%) methanol in dichloromethane afforded 0.0349 (56%) of the title compound.

後処理

  1. customwas de-gassed
  2. additionrefilled with N2 in three cycles
  3. customde-gassed
  4. additionrefilled with N2 in three additional cycles
  5. temperatureThe reaction mixture was heated
  6. temperatureto cool to room temperature
  7. customquenched with water (1 mL)
  8. extractionThe aqueous phase was extracted with dichloromethane (3×10 mL)
  9. washThe combined organics were washed with sodium bicarbonate (5 mL), and brine (10 mL)
  10. dry with materialdried over Na2SO4
  11. concentrationconcentrated under vacuum
  12. customPurification by column chromatography on silica gel (0-10%) methanol in dichloromethane

出典と根拠

ORDレコード
ord-f793915dd07542f1a41ebd6e0395fd34
出典データセット
uspto-grants-2014_08
特許番号
US08796278B2

反応ノート

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