Methyl iodide → Tert-butyl 4-{5-[2-fluoro-4-(methylsulfonyl)phenyl]-1-methyl-1H-benzo[d]imidazol-2-yl}piperidine-1-carboxylate

HRID 710117ノート

反応式

HRID 710117 の反応式
[F:1][C:2]1[CH:7]=[C:6]([S:8]([CH3:11])(=[O:10])=[O:9])[CH:5]=[CH:4][C:3]=1[C:12]1[CH:33]=[CH:32][C:15]2[NH:16][C:17]([CH:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21][CH2:20]3)=[N:18][C:14]=2[CH:13]=1.[H-].[Na+].CI.[CH3:38]COC(C)=O.O>C1COCC1>[F:1][C:2]1[CH:7]=[C:6]([S:8]([CH3:11])(=[O:9])=[O:10])[CH:5]=[CH:4][C:3]=1[C:12]1[CH:33]=[CH:32][C:15]2[N:16]([CH3:38])[C:17]([CH:19]3[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:30])([CH3:29])[CH3:31])=[O:26])[CH2:21][CH2:20]3)=[N:18][C:14]=2[CH:13]=1

参加物

6

反応物 4

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 22728543Water ethylacetateHCID 178451785HCID 178451785、化合物

生成物 1

HCID 71114581Tert-butyl 4-{5-[2-fluoro-4-(methylsulfonyl)phenyl]-1-methyl-1H-benzo[d]imidazol-2-yl}piperidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

Tert-butyl 4-{5-[2-fluoro-4-(methylsulfonyl)phenyl]-1H-benzo[d]imidazol-2-yl}piperidine-1-carboxylate (85 mg, 0.17 mmol) dissolved in THF (15 ml) and cooled to 0° C. Sodium hydride (9 mg, 0.342 mmol) added to the above mixture and stirred at the same temperature for 30 mins. To this mixture methyl iodide (48 mg, 0.342 mmol) added at same temperature and stirred the reaction mixture at rt for 3 h. Reaction mixture diluted with ice and worked up (EtOAc/H2O). Crude was purified by column chromatography on 60-120 mesh silica gel using EtOAc:Petether (3:1) as eluent to afford the title compound (50 mg) as an orange solid. M.P.: 85-88° C. 1H-NMR (δ ppm, CDCl3, 400 MHz): 7.85-7.75 (m, 2H), 7.73-7.64 (m, 2H), 7.56-7.51 (m, 1H), 7.50-7.45 (m, 1H), 4.39-4.21 (m, 2H), 3.82 (s, 3H), 3.11 (s, 3H), 3.10-3.00 (m, 2H), 3.00-2.88 (m, 2H), 2.05-1.93 (m, 3H), 1.48 (s, 9H).

後処理

  1. stirringstirred the reaction mixture at rt for 3 h
  2. customReaction mixture
  3. additiondiluted with ice
  4. customCrude was purified by column chromatography on 60-120 mesh silica gel

出典と根拠

ORDレコード
ord-44f72d6a54d74c3ba456d622c8321d21
出典データセット
uspto-grants-2015_11
特許番号
US09181214B2

反応ノート

読み込み中…