Hydrochloric Acid → Methanesulfonic acid 5-[6-fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-ynyl ester

HRID 49520ノート

反応式

HRID 49520 の反応式
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][CH2:7][N:8]2[S:11]([C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=2)(=[O:13])=[O:12])=[CH:4][C:3]=1[C:21]#[C:22][CH2:23][CH2:24][CH2:25][OH:26].C(N(C(C)C)CC)(C)C.[CH3:36][S:37](Cl)(=[O:39])=[O:38].Cl>C(Cl)Cl.CCOCC>[F:1][C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][CH2:7][N:8]2[S:11]([C:14]2[CH:19]=[CH:18][C:17]([CH3:20])=[CH:16][CH:15]=2)(=[O:13])=[O:12])=[CH:4][C:3]=1[C:21]#[C:22][CH2:23][CH2:24][CH2:25][O:26][S:37]([CH3:36])(=[O:39])=[O:38]

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 31297Methanesulfonyl chlorideHCID 81531DiisopropylethylamineHCID 219666365-[6-Fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-yn-1-ol

生成物 1

HCID 86587014Methanesulfonic acid 5-[6-fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-ynyl ester収率 94.2%

試薬・触媒・溶媒 2

HCID 3283Diethyl Ether溶媒HCID 6344Dichloromethane溶媒

実験手順

A solution of 50 mg (0.141 mmol) of 5-[6-Fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-yn-1-ol and 0.072 ml (0.42 mmol) diisopropyl ethylamine in 2 ml CH2Cl2 was treated at 0° C. with 0.033 ml (0.42 mmol) methanesulfonylchloride and stirred at room temperature for one hour. Addition of aqueous 0.1M HCl, extraction with Et2O, drying of the organic layer with MgSO4, and evaporation of the solvent gave 60 mg of Methanesulfonic acid 5-[6-fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-ynyl ester as brown oil of which 12 mg were dissolved in 0.5 ml DMF, treated with 0.043 ml (0.053 mmol) 2-(methylamino)ethanol and stirred at 80° C. during 2 hours. Evaporation of the solvent and excess 2-(methylamino)ethanol and chromatography on silica gel with EtOAc/MeOH/NEt3 10:1:0.1 gave 10 mg (82%) of 2-({5-[6-Fluoro-1-(toluene-4-sulfonyl)-2,3-dihydro-1H-indol-5-yl]-pent-4-ynyl}-methyl-amino)-ethanol as a light yellow oil, MS: 431 (MH+).

後処理

  1. dry with materialdrying of the organic layer with MgSO4, and evaporation of the solvent

出典と根拠

ORDレコード
ord-98ad5f32979640cea92b2f149d41f733
出典データセット
uspto-grants-2004_03
特許番号
US06706751B2

反応ノート

読み込み中…