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Water → (3R,4S)-1-(tert-butoxycarbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]phenyl}piperidine-3-carboxylic acid

HRID 658235
ノート
印刷プレビュー

反応式

HRID 658235 の反応式
C[O:2][C:3]([C@@H:5]1[C@@H:10]([C:11]2[CH:16]=[CH:15][C:14]([O:17][CH2:18][CH2:19][O:20][C:21]3[C:26]([Cl:27])=[CH:25][C:24]([CH3:28])=[CH:23][C:22]=3[Cl:29])=[CH:13][CH:12]=2)[CH2:9][CH2:8][N:7]([C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:6]1)=[O:4].[OH-].[Na+].O>CO>[C:33]([O:32][C:30]([N:7]1[CH2:8][CH2:9][C@H:10]([C:11]2[CH:16]=[CH:15][C:14]([O:17][CH2:18][CH2:19][O:20][C:21]3[C:26]([Cl:27])=[CH:25][C:24]([CH3:28])=[CH:23][C:22]=3[Cl:29])=[CH:13][CH:12]=2)[C@@H:5]([C:3]([OH:4])=[O:2])[CH2:6]1)=[O:31])([CH3:36])([CH3:34])[CH3:35]
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 962WaterHCID 14798Sodium HydroxideHCID 67148356(3R,4S)-4-{4-[2-(2,6-Dichloro-4-methyl-phenoxy)-ethoxy]-phenyl}-piperidine-1,3-dicarboxylic Acid 1-tert-butyl Ester 3-methyl Ester

生成物 1

HCID 59234216(3R,4S)-1-(tert-butoxycarbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]phenyl}piperidine-3-carboxylic acid収率 65.7%

試薬・触媒・溶媒 1

HCID 887
Methanol
溶媒

反応条件

温度
70 °C

実験手順

To a sol. of compound (rac.)-(3R*,4S*)-4-{4-[2-(2,6-Dichloro-4-methylphenoxy)ethoxy]phenyl}-piperidine-1,3-dicarboxylic acid 1-tert-butyl ester 3-methyl ester (0.15 g, 0.27 mmol) in MeOH (1 mL) was added aq. 1M NaOH (1 mL). The mixture was stirred at 70° C. for 2 h. Water was added, and the mixture was extracted with EtOAc. The org. phase was washed with brine, dried over MgSO4, filtered, and the solvents were removed under reduced pressure. The crude residue was purified on a pad of silica gel to yield the title compound (93 mg, 65%). LC-MS: tR=1.12 min, ES+=524.24.

後処理

  1. extractionthe mixture was extracted with EtOAc
  2. washphase was washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. customthe solvents were removed under reduced pressure
  6. customThe crude residue was purified on a pad of silica gel

出典と根拠

ORDレコード
ord-df4a4e1d4b474cfc818b9a86b3dbab42
出典データセット
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08076359B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート