3-Bromo-N,N-dimethylbenzenesulfonamide → 3-[4-({6-[(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)but-1-ynyl]-N,N-dimethylbenzenesulfonamide

HRID 720829ノート

反応式

HRID 720829 の反応式
[CH2:1]([O:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][N:12]1[CH2:16][C@@H:15]([C:17]2[CH:28]=[CH:27][C:20]3[O:21][C:22]([CH3:26])([CH3:25])[O:23][CH2:24][C:19]=3[CH:18]=2)[O:14][C:13]1=[O:29])[CH2:2][C:3]#[CH:4].Br[C:31]1[CH:32]=[C:33]([S:37]([N:40]([CH3:42])[CH3:41])(=[O:39])=[O:38])[CH:34]=[CH:35][CH:36]=1>N1CCCC1>[CH3:26][C:22]1([CH3:25])[O:21][C:20]2[CH:27]=[CH:28][C:17]([C@H:15]3[O:14][C:13](=[O:29])[N:12]([CH2:11][CH2:10][CH2:9][CH2:8][CH2:7][CH2:6][O:5][CH2:1][CH2:2][C:3]#[C:4][C:35]4[CH:34]=[C:33]([S:37]([N:40]([CH3:42])[CH3:41])(=[O:38])=[O:39])[CH:32]=[CH:31][CH:36]=4)[CH2:16]3)=[CH:18][C:19]=2[CH2:24][O:23]1

参加物

4

反応物 2

HCID 71298453-Bromo-N,N-dimethylbenzenesulfonamideHCID 42625666(5R)-3-[6-(But-3-ynyloxy)hexyl]5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one

生成物 1

HCID 426251673-[4-({6-[(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)but-1-ynyl]-N,N-dimethylbenzenesulfonamide収率 61.7%

試薬・触媒・溶媒 1

HCID 31268Pyrrolidine溶媒

実験手順

A mixture of (5R)-3-[6-(but-3-ynyloxy)hexyl]-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one (0.256 g) and 3-bromo-N,N-dimethylbenzene sulphonamide (0.208 g) in pyrrolidine (4 ml) was degassed using vacuum/nitrogen cycle. Cuprous iodide (0.005 g) and dichlorobis(triphenylphosphine)palladium (0.037 g) were added and the mixture was stirred at 80° for 45 min under nitrogen. The mixture was diluted with EtOAc and washed with water. The aqueous phase was extracted with EtOAc and the combined organic phases washed with brine, dried (Na2SO4) and evaporated to dryness. The residue was dissolved in CH2Cl2 and applied to a silica Bond Elut Cartridge (10 g). The cartridge was eluted with CH2Cl2, cyclohexane/Et2O, Et2O and EtOAc. Evaporation of the ether fractions gave an oil which was repurified by silica Bond Elut to give the title compound (0.23 g), ES+ve 585 (MH)+.

後処理

  1. customwas degassed
  2. additionCuprous iodide (0.005 g) and dichlorobis(triphenylphosphine)palladium (0.037 g) were added
  3. additionThe mixture was diluted with EtOAc
  4. washwashed with water
  5. extractionThe aqueous phase was extracted with EtOAc
  6. washthe combined organic phases washed with brine
  7. dry with materialdried (Na2SO4)
  8. customevaporated to dryness
  9. dissolutionThe residue was dissolved in CH2Cl2
  10. washThe cartridge was eluted with CH2Cl2, cyclohexane/Et2O, Et2O and EtOAc
  11. customEvaporation of the ether fractions
  12. customgave an oil which
  13. customwas repurified by silica Bond Elut

出典と根拠

ORDレコード
ord-c2f69f44cf4b4c17ba3e4bf3a489864f
出典データセット
uspto-grants-2006_11
特許番号
US07135600B2

反応ノート

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