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Sodium triacetoxyborohydride → (S)-tert-butyl 1-(3-fluoro-4-((3,3,4-trimethylpiperazin-1-yl)methyl)phenyl)ethylcarbamate

HRID 1850121
ノート
印刷プレビュー

反応式

HRID 1850121 の反応式
[F:1][C:2]1[CH:3]=[C:4]([C@@H:10]([NH:12][C:13](=[O:19])[O:14][C:15]([CH3:18])([CH3:17])[CH3:16])[CH3:11])[CH:5]=[CH:6][C:7]=1[CH:8]=O.Cl.Cl.[CH3:22][N:23]1[CH2:28][CH2:27][NH:26][CH2:25][C:24]1([CH3:30])[CH3:29].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].CO.C(Cl)Cl>C1COCC1>[F:1][C:2]1[CH:3]=[C:4]([C@@H:10]([NH:12][C:13](=[O:19])[O:14][C:15]([CH3:18])([CH3:17])[CH3:16])[CH3:11])[CH:5]=[CH:6][C:7]=1[CH2:8][N:26]1[CH2:27][CH2:28][N:23]([CH3:22])[C:24]([CH3:30])([CH3:29])[CH2:25]1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 5049666Sodium triacetoxyborohydrideHCID 21226129Dichloromethane methanolHCID 232893821,2,2-Trimethylpiperazine dihydrochlorideHCID 86730149(S)-tert-butyl 1-(3-fluoro-4-formylphenyl)ethylcarbamate

生成物 1

HCID 86730151(S)-tert-butyl 1-(3-fluoro-4-((3,3,4-trimethylpiperazin-1-yl)methyl)phenyl)ethylcarbamate収率 49%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

実験手順

A solution of (S)-tert-butyl 1-(3-fluoro-4-formylphenyl)ethylcarbamate (267 mg, 1 mmol) and 1,2,2-trimethylpiperazine dihydrochloride (402 mg, 2 mmol) in THF (5 mL) was stirred at room temperature for 1 h and treated with sodium triacetoxyborohydride (848 mg, 4 mmol). The resulting mixture was stirred at room temperature for 16 h. The reaction mixture was quenched with saturated aqueous solution of NaHCO3 (15 mL) and extracted with EtOAc (3×25 mL). Combined organics were dried over Na2SO4, filtered and concentrated. Silica gel column chromatography (MeOH/CH2Cl2 0 to 10%) provided (S)-tert-butyl 1-(3-fluoro-4-((3,3,4-trimethylpiperazin-1-yl)methyl)phenyl)ethylcarbamate as a white solid (186 mg, 49% yield).

後処理

  1. customThe reaction mixture was quenched with saturated aqueous solution of NaHCO3 (15 mL)
  2. extractionextracted with EtOAc (3×25 mL)
  3. dry with materialCombined organics were dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-ad08149ac2e040339b3d30da4167fdc3
出典データセット
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08957068B2

反応ノート

読み込み中…

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