Imidazole → HCID 69332404, 화합물

HRID 350512노트

반응식

HRID 350512 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([OH:13])[CH2:10][C@H:9]1[CH2:14][OH:15])=[O:7])([CH3:4])([CH3:3])[CH3:2].N1C=CN=C1.[Si:21](Cl)([C:34]([CH3:37])([CH3:36])[CH3:35])([C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.O>CN(C=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([OH:13])[CH2:10][C@H:9]1[CH2:14][O:15][Si:21]([C:34]([CH3:37])([CH3:36])[CH3:35])([C:28]1[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

참가 물질

6

반응물 4

HCID 795ImidazoleHCID 962WaterHCID 94078tert-ButyldiphenylchlorosilaneHCID 11275979N-Boc-trans-4-hydroxy-L-prolinol

생성물 1

HCID 69332404HCID 69332404, 화합물수율 33%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a stirred solution of trans-1-tert-butoxycarbonyl-(2S)-hydroxymethyl-4-hydroxypyrrolidine (2.17 g, 10.0 mmol) and imidazole (2.04 g, 30.0 mmol) in DMF (50 ml) was added TBDPS-Cl (3.03 g, 11.0 mmol) at 0° C. The reaction mixture was stirred at room temperature for 18 hr. Water was added thereto, and extracted with EtOAc. The extract was washed with water, then dried over Na2SO4, and concentrated in vacuo. The residue was purified by column chromatography on silica gel with n-hexane-EtOAc(3:2, v/v) as eluent to give trans-1-tert-butoxycarbonyl-(2S)-(tert-butyldiphenylsilyloxy)methyl-4-hydroxypyrrolidine (1.5 g, 33%) as a white crystalline solid. 1H-NMR (CDCl3) δ 1.03 (s9H), 1.25 and 1.32 (each s, 9H), 1.90–2.10 (m, 1H), 2.30–2.40 (m, 1H), 3.40–3.80 (m, 3H), 3.95–4.15 (m, 2H), 4.45–4.55 (m, 1H), 7.37–7.39 (m, 6H), 7.63–7.64 (m, 4H).

후처리

  1. extractionextracted with EtOAc
  2. washThe extract was washed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography on silica gel with n-hexane-EtOAc(3:2

출처 및 근거

ORD 기록
ord-b5c73bc1cd544318813f8af3be34f9c0
출처 데이터셋
uspto-grants-2007_02
특허 번호
US07179819B2

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