2-Methoxybenzylamine → (2S)-2-[(2-methoxybenzylamino)methyl]pyrrolidine-1-carboxylic acid benzyl ester

HRID 1006323

반응식

HRID 1006323 반응식
[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[CH2:16]OS(C1C=CC(C)=CC=1)(=O)=O)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:28][O:29][C:30]1[CH:37]=[CH:36][CH:35]=[CH:34][C:31]=1[CH2:32][NH2:33].C(N(CC)C(C)C)(C)C>CN1CCN(C)C1=O>[CH2:1]([O:8][C:9]([N:11]1[CH2:15][CH2:14][CH2:13][C@H:12]1[CH2:16][NH:33][CH2:32][C:31]1[CH:34]=[CH:35][CH:36]=[CH:37][C:30]=1[O:29][CH3:28])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

반응 조건

온도
93 °C

실험 절차

A mixture of (2S)-2-(4-methylphenylsulfonyloxymethyl)pyrrolidine-1-carboxylic acid benzyl ester (26.2 g), 2-methoxybenzylamine (44 ml) and N,N-diisopropylethylamine (17.6 ml) in 1,3-dimethyl-2-imidazolidinone (393 ml) was stirred at 93° C. for 7 hours. The mixture was poured into ice-water and extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using a mixed solvent of dichloromethane and methanol (20:1). The fractions containing the objective compound were collected and evaporated under reduced pressure to give a syrup of (2S)-2-[(2-methoxybenzylamino)methyl]pyrrolidine-1-carboxylic acid benzyl ester (15.7 g).

후처리

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with brine
  3. dry with materialdried over magnesium sulfate
  4. customevaporated under reduced pressure
  5. customThe residue was purified by column chromatography on silica gel using a mixed solvent of dichloromethane and methanol (20:1)
  6. additionThe fractions containing the objective compound
  7. customwere collected
  8. customevaporated under reduced pressure

출처 및 근거

ORD 기록
ord-52ca477d039e4fe1837ebf825f68823b
출처 데이터셋
uspto-grants-2004_09
특허 번호
US06787543B2

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