Cesium carbonate → Methyl 3-[[5-[3-[[tert-butyl(dimethyl)silyl]oxymethyl]pyrrolidin-1-yl]-2-methyl-benzoyl]amino]-2,4-dimethyl-benzoate

HRID 239940ノート

反応式

HRID 239940 の反応式
Br[C:2]1[CH:3]=[CH:4][C:5]([CH3:23])=[C:6]([CH:22]=1)[C:7]([NH:9][C:10]1[C:11]([CH3:21])=[C:12]([CH:17]=[CH:18][C:19]=1[CH3:20])[C:13]([O:15][CH3:16])=[O:14])=[O:8].[C:24]([Si:28]([CH3:37])([CH3:36])[O:29][CH2:30][CH:31]1[CH2:35][CH2:34][NH:33][CH2:32]1)([CH3:27])([CH3:26])[CH3:25].C([O-])([O-])=O.[Cs+].[Cs+].COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1>O1CCOCC1.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]>[Si:28]([O:29][CH2:30][CH:31]1[CH2:35][CH2:34][N:33]([C:2]2[CH:3]=[CH:4][C:5]([CH3:23])=[C:6]([CH:22]=2)[C:7]([NH:9][C:10]2[C:11]([CH3:21])=[C:12]([CH:17]=[CH:18][C:19]=2[CH3:20])[C:13]([O:15][CH3:16])=[O:14])=[O:8])[CH2:32]1)([C:24]([CH3:27])([CH3:26])[CH3:25])([CH3:37])[CH3:36]

参加物

7

反応物 4

HCID 10796Cesium carbonateHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 53399198Tert-butyl-dimethyl(pyrrolidin-3-ylmethoxy)silaneHCID 86707319Methyl 3-[(5-bromo-2-methyl-benzoyl)amino]-2,4-dimethyl-benzoate

生成物 1

HCID 86707328Methyl 3-[[5-[3-[[tert-butyl(dimethyl)silyl]oxymethyl]pyrrolidin-1-yl]-2-methyl-benzoyl]amino]-2,4-dimethyl-benzoate

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

To a solution of methyl 3-[(5-bromo-2-methyl-benzoyl)amino]-2,4-dimethyl-benzoate (0.5 g, 1.32 mmol), tert-butyl-dimethyl-(pyrrolidin-3-ylmethoxy)silane (0.4 g, 1.99 mmol) and Cs2CO3 (1.2 g, 3.99 mmol) in 1,4-dioxane (15 ml) is added Pd2(dba)3 (0.12 g, 0.132 mmol) followed by S-Phos (0.054 g, 0.132 mmol). The reaction mixture is purged with nitrogen for 5 minutes and then heated at 100° C. After 16 hours, the reaction is cooled to ambient temperature, filtered through Celite™, and washed with EtOAc. The combined filtrates are dried over sodium sulfate, filtered, and concentrated under reduced pressure and purified by flash chromatography (silica gel) using 20% EtOAc in hexane to afford the title compound as a brown semi solid (0.36 g, 53%). Mass spectrum (m/z): 511.2 (M+1).

後処理

  1. customThe reaction mixture is purged with nitrogen for 5 minutes
  2. temperaturethe reaction is cooled to ambient temperature
  3. filtrationfiltered through Celite™
  4. washwashed with EtOAc
  5. dry with materialThe combined filtrates are dried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. custompurified by flash chromatography (silica gel)

出典と根拠

ORDレコード
ord-2634a50199f84bdaa441e255fc561355
出典データセット
uspto-grants-2014_02
特許番号
US08642768B2

反応ノート

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