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Trifluoroacetic acid → (2R)-N-(2-(2-(3-hydroxypropoxy)phenyl)ethyl)-N-methyl-2-(methylamino)-3-(2-naphthyl)propionamide

HRID 366159
ノート
印刷プレビュー

反応式

HRID 366159 の反応式
C(O[C:6](=O)[N:7]([C@@H:9]([C:21](=[O:37])[N:22]([CH2:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1[O:32][CH2:33][CH2:34][CH2:35][OH:36])[CH3:23])[CH2:10][C:11]1[CH:20]=[CH:19][C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:12]=1)C)(C)(C)C.FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+]>ClCCl>[OH:36][CH2:35][CH2:34][CH2:33][O:32][C:27]1[CH:28]=[CH:29][CH:30]=[CH:31][C:26]=1[CH2:25][CH2:24][N:22]([CH3:23])[C:21](=[O:37])[C@H:9]([NH:7][CH3:6])[CH2:10][C:11]1[CH:20]=[CH:19][C:18]2[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH:12]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium Bicarbonate2 回HCID 54458179N-[(1R)-1-(N-{2-[2-(3-hydroxypropoxy)phenyl]ethyl}-N-methylcarbamoyl)-2-(2-naphthyl)ethyl]-N-methylcarbamic acid tert-butyl ester

生成物 1

HCID 10645806(2R)-N-(2-(2-(3-hydroxypropoxy)phenyl)ethyl)-N-methyl-2-(methylamino)-3-(2-naphthyl)propionamide収率 69.4%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒
2 回

反応条件

温度
0 °C

実験手順

A solution of N-[(1R)-1-(N-{2-[2-(3-hydroxypropoxy)phenyl]ethyl}-N-methylcarbamoyl)-2-(2-naphthyl)ethyl]-N-methylcarbamic acid tert-butyl ester (383 mg, 0.74 mmol) in dichloromethane (4 ml) was cooled to 0° C. Trifluoroacetic acid (4 ml) was added. The reaction mixture was stirred for 105 min at 0° C. Dichloromethane (40 ml) was added. A saturated aqueous solution of sodium hydrogen carbonate (40 ml) was added dropwise. Solid sodium hydrogen carbonate was added, until pH 7 was obtained. The phases were separated. The aqueous phase was extracted with dichloromethane (3×60 ml). The combined organic layers were dried over magnesium sulfate. The solvent was removed in vacuo. The crude product was purified by flash chromatography on silica (30 g), using dichloromethane/methanol/25% aqueous ammonia (100:10:1) as eluent, to give 216 mg of (2R)-N-(2-(2-(3-hydroxypropoxy)phenyl)ethyl)-N-methyl-2-(methylamino)-3-(2-naphthyl)propionamide.

後処理

  1. customwas obtained
  2. customThe phases were separated
  3. extractionThe aqueous phase was extracted with dichloromethane (3×60 ml)
  4. dry with materialThe combined organic layers were dried over magnesium sulfate
  5. customThe solvent was removed in vacuo
  6. customThe crude product was purified by flash chromatography on silica (30 g)

出典と根拠

ORDレコード
ord-dcdd1df11f05492e8df6b30da927dad3
出典データセット
uspto-grants-2000_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06127354

反応ノート

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