Hydrochloric Acid → 5-[1-Fluoro-3-hydroxy-7-(4-formyl-4-methyl-pentyl)-naphthalen-2-yl]-1,1-dioxo-[1,2,5]thiadiazolidin-3-one
反応式
[F:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[C:9]([CH2:12][CH2:13][CH2:14][C:15]([CH3:19])([CH3:18])[CH2:16][OH:17])[CH:10]=2)[CH:5]=[C:4]([OH:20])[C:3]=1[N:21]1[S:25](=[O:27])(=[O:26])[NH:24][C:23](=[O:28])[CH2:22]1.C(N(CC)CC)C.O.Cl>CS(C)=O>[F:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[C:9]([CH2:12][CH2:13][CH2:14][C:15]([CH:16]=[O:17])([CH3:19])[CH3:18])[CH:10]=2)[CH:5]=[C:4]([OH:20])[C:3]=1[N:21]1[S:25](=[O:26])(=[O:27])[NH:24][C:23](=[O:28])[CH2:22]1参加物
6
反応物 4
生成物 1
試薬・触媒・溶媒 1
実験手順
To a stirred solution of 5-[1-fluoro-3-hydroxy-7-(5-hydroxy-4,4-dimethylpentyl)-naphthalen-2-yl]-1,1-dioxo-1,2,5-thiadiazolidin-3-one (1.00 g, 2.23 mmol) in anhydrous DMSO (10 ml) at room temperature was added triethylamine (2.17 mL, 15.6 mmol) followed by a slow addition of a solution of sulfur trioxide pyridine complex (1.28 g, 8.02 mmol) in anhydrous DMSO (12 mL). The reaction mixture was stirred for 30 min and cold water (70 mL) was slowly added. The above content was acidified with 3 N HCl to pH 2.5, extracted twice with EtOAc, washed with brine, dried over MgSO4, and concentrated to yield the title compound as a light brown solid. Retention time=1.22 min (Method A); MS (M−H)−=407.
後処理
- extractionextracted twice with EtOAc
- washwashed with brine
- dry with materialdried over MgSO4
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-23016b81fa0b43678f342aa48249d70f
- 出典データセット
- uspto-grants-2012_08
- 特許番号
- US08252820B2
反応ノート
読み込み中…