Hydrochloric Acid → Acetic Acid 2-(5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonylamino)-1,1-dimethyl-2-oxo-ethyl Ester

HRID 11666

反応式

HRID 11666 の反応式
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:12][CH2:13][C:14]([N:16]2[CH2:21][C@H:20]([CH3:22])[N:19]([CH2:23][C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=3)[CH2:18][C@H:17]2[CH3:31])=[O:15])=[C:6]([S:8]([NH2:11])(=[O:10])=[O:9])[CH:7]=1.C(N(CC)CC)C.Cl[C:40]([C:42]([O:45][C:46](=[O:48])[CH3:47])([CH3:44])[CH3:43])=[O:41].Cl>ClCCl.CN(C)C1C=CN=CC=1>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:12][CH2:13][C:14]([N:16]2[CH2:21][C@H:20]([CH3:22])[N:19]([CH2:23][C:24]3[CH:25]=[CH:26][C:27]([F:30])=[CH:28][CH:29]=3)[CH2:18][C@H:17]2[CH3:31])=[O:15])=[C:6]([S:8]([NH:11][C:40](=[O:41])[C:42]([O:45][C:46](=[O:48])[CH3:47])([CH3:44])[CH3:43])(=[O:9])=[O:10])[CH:7]=1

参加物

7

反応物 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 1234962-Acetoxyisobutyroyl chlorideHCID 692957585-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonamide

生成物 1

HCID 69655351Acetic Acid 2-(5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonylamino)-1,1-dimethyl-2-oxo-ethyl Ester収率 111.5%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6344Dichloromethane溶媒

実験手順

To a solution of 5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-benzenesulfonamide (0.10 g, 0.21 mmol) in dichloromethane (2 mL) was added triethylamine (0.033 mL, 0.23 mmol), 4-dimethylaminopyridine (5 mg, 0.04 mmol) and acetic acid 1-chlorocarbonyl-1-methyl-ethyl ester (0.037 mL, 0.25 mmol). The resulting reaction mixture was stirred at ambient temperature overnight, treated with 0.2 N hydrochloric acid extracted with dichloromethane dried over magnesium sulfate, filtered and concentrated in vacuo to give the crude title compound (0.140 g).

後処理

  1. customThe resulting reaction mixture
  2. extractionextracted with dichloromethane
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-9c8d94f9fb99434eb3bbcfd9034a6337
出典データセット
uspto-grants-2006_08
特許番号
US07098212B2

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