1-Methylhydantoin → 3-[3-(3-methylimidazolidine-2,5-dione-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide

HRID 562556ノート

反応式

HRID 562556 の反応式
[CH3:1][N:2]1[CH2:8][C:6](=[O:7])[NH:5][C:3]1=[O:4].CC([O-])(C)C.[K+].Br[CH2:16][C:17]1[CH:18]=[C:19]([C:23]2[CH:27]=[C:26]([CH2:28][CH:29]([CH3:31])[CH3:30])[S:25][C:24]=2[S:32]([NH:35][C:36]([CH3:39])([CH3:38])[CH3:37])(=[O:34])=[O:33])[CH:20]=[CH:21][CH:22]=1>CS(C)=O.C(Cl)Cl>[CH3:1][N:2]1[CH2:8][C:6](=[O:7])[N:5]([CH2:16][C:17]2[CH:18]=[C:19]([C:23]3[CH:27]=[C:26]([CH2:28][CH:29]([CH3:31])[CH3:30])[S:25][C:24]=3[S:32]([NH:35][C:36]([CH3:38])([CH3:37])[CH3:39])(=[O:33])=[O:34])[CH:20]=[CH:21][CH:22]=2)[C:3]1=[O:4]

参加物

6

反応物 3

HCID 692171-MethylhydantoinHCID 23665647Potassium tert-butoxideHCID 670039813-(3-Bromomethylphenyl)-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide

生成物 1

HCID 670039673-[3-(3-methylimidazolidine-2,5-dione-1-ylmethyl)phenyl]-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide収率 54%

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒2 回HCID 6344Dichloromethane溶媒

実験手順

To a solution of 1-methylhydantoin (33.9 mg, 0.297 mmol) in DMSO (1 mL) and t-BuOK (46.6 mg, 0.415 mmol), that had been stirred for 40 min at ambient temperature, was added a solution of 3-(3-bromomethylphenyl)-5-iso-butyl-N-tert-butylthiophene-2-sulfonamide (87.9 mg, 0.198 mmol; see Example 1(e)) in DMSO (1 mL) dropwise. The reaction mixture was stirred for 1 h at ambient temperature and then diluted with CH2Cl2 (15 mL). The organic layer was washed with water, dried (over anhydrous MgSO4), concentrated in vacuo, and the residue purified by flash chromatography using EtOAc:petroleum ether (35:65) as eluent to give the sub-title compound in 54% yield as a colourless syrup (51.5 mg, 0.107 mmol).

後処理

  1. washThe organic layer was washed with water
  2. dry with materialdried (over anhydrous MgSO4)
  3. concentrationconcentrated in vacuo
  4. customthe residue purified by flash chromatography

出典と根拠

ORDレコード
ord-79c177a6e78a435cb97e1bc9b7208bb1
出典データセット
uspto-grants-2011_11
特許番号
US08067418B2

反応ノート

読み込み中…