Diisopropylethylamine → (2S,3S)-2-(3-Chloro-2-fluoro-benzylcarbamoyl)-3-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 1527336ノート

反応式

HRID 1527336 の反応式
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][C@H:10]([OH:13])[C@H:9]1[C:14]([OH:16])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:17][C:18]1[C:19]([F:26])=[C:20]([CH:23]=[CH:24][CH:25]=1)[CH2:21][NH2:22].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][C@H:10]([OH:13])[C@H:9]1[C:14](=[O:16])[NH:22][CH2:21][C:20]1[CH:23]=[CH:24][CH:25]=[C:18]([Cl:17])[C:19]=1[F:26])=[O:7])([CH3:2])([CH3:3])[CH3:4]

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 2773614(3-Chloro-2-fluorophenyl)methanamineHCID 14037017(2S,3S)-1-(tert-Butoxycarbonyl)-3-hydroxypyrrolidine-2-carboxylic acid

生成物 1

HCID 68283845(2S,3S)-2-(3-Chloro-2-fluoro-benzylcarbamoyl)-3-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of (2S,3S)-3-hydroxy-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester (800 mg, 3.46 mmol; prepared according to J. Amer. Chem. Soc. 2005, 127, 15923-15932) in CH2Cl2 (35 mL) were added successively 3-chloro-2-fluorobenzylamine (0.435 mL, 3.46 mmol), HBTU (1.97 g, 5.19 mmol), DIPEA (1.21 mL, 6.92 mmol). After stirring at RT for 18 h, the reaction mixture was diluted with CH2Cl2 and the organics were washed with water (2×), 0.1N aqueous HCl (2×), aqueous NaHCO3 solution (2×) and brine, dried (phase separator) and concentrated in vacuo. The crude product was purified by flash column chromatography on silica gel (EtOAc/c-hexane 1:2 to 4:1 then EtOAc) to afford the title compound as a colorless wax. TLC Rf (EtOAc/c-hexane 1:1)=0.32; MS (LC/MS): 373 [M+H]+, 395 [M+Na]+, 767 [2M+Na]+; tR (HPLC conditions C): 4.42 min.

後処理

  1. washthe organics were washed with water (2×), 0.1N aqueous HCl (2×), aqueous NaHCO3 solution (2×) and brine
  2. customdried (phase separator)
  3. concentrationconcentrated in vacuo
  4. customThe crude product was purified by flash column chromatography on silica gel (EtOAc/c-hexane 1:2 to 4:1

出典と根拠

ORDレコード
ord-506968c25dd24d689a7aed8b5ad839eb
出典データセット
uspto-grants-2015_07
特許番号
US09085555B2

反応ノート

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