Tetrahydrofuran → 4-(3-Hydroxy-2-methoxycarbonyl-7-trifluoromethyl-2,3-dihydro-benzo[b]thiophen-3-yl)-piperidine-1-carboxylic acid tert-butyl ester

HRID 1986940

反応式

HRID 1986940 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14](=[O:26])[C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([C:21]([F:24])([F:23])[F:22])[C:16]=2F)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:27]([O:31][CH3:32])(=[O:30])[CH2:28][SH:29].C1COCC1.[H-].[Na+]>C(OCC)(=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2([OH:26])[CH:28]([C:27]([O:31][CH3:32])=[O:30])[S:29][C:16]3[C:17]([C:21]([F:22])([F:24])[F:23])=[CH:18][CH:19]=[CH:20][C:15]2=3)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

参加物

6

反応物 4

HCID 8028TetrahydrofuranHCID 16907Methyl ThioglycolateHCID 24758Sodium hydrideHCID 588175404-(2-Fluoro-3-trifluoromethyl-benzoyl)-piperidine-1-carboxylic acid tert-butyl ester

生成物 1

HCID 684553724-(3-Hydroxy-2-methoxycarbonyl-7-trifluoromethyl-2,3-dihydro-benzo[b]thiophen-3-yl)-piperidine-1-carboxylic acid tert-butyl ester収率 56%

試薬・触媒・溶媒 1

HCID 8857Ethyl Acetate溶媒

反応条件

温度
55 °C

実験手順

To a room temperature solution of 4-(2-fluoro-3-trifluromethyl-benzoyl)-piperidine-1-carboxylic acid tert-butyl ester (9.00 g, 24.0 mmol), methyl thioglycolate (2.40 mL, 26.8 mmol), and anhydrous THF (200 mL) under nitrogen was added NaH (1.15 g of a 60% oil dispersion, 28.7 mmol) in one portion. After the gas evolution ceased, the reaction was stirred at 55° C. After 100 min, the reaction was cooled to room temperature and diluted with ethyl acetate (500 mL). The mixture was washed with water (300 mL) and brine (300 mL) successively, dried over magnesium sulfate, filtered, and the solvent removed to afford a sticky white solid. Trituration with 20% ethyl acetatetheptane afforded 6.20 g (56%) of the desired product as a white powder.

後処理

  1. temperaturethe reaction was cooled to room temperature
  2. washThe mixture was washed with water (300 mL) and brine (300 mL) successively
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. customthe solvent removed
  6. customto afford a sticky white solid

出典と根拠

ORDレコード
ord-87ca3364dd2249bc9a5e501b1ee3a0e5
出典データセット
uspto-grants-2009_06
特許番号
US07550469B2

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