2-Methoxypropane → (2R,4R)-2-[(4S,5S)-3-Acetyl-4-(3,5-difluoro-benzyl)-2,2-dimethyl-oxazolidin-5-yl]-4-benzyloxy-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 732379노트

반응식

HRID 732379 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:10][C@@H:9]1[C@@H:21]([OH:36])[C@@H:22]([NH:32][C:33](=[O:35])[CH3:34])[CH2:23][C:24]1[CH:29]=[C:28]([F:30])[CH:27]=[C:26]([F:31])[CH:25]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:37][C:38]1C=CC(S([O-])(=O)=O)=C[CH:39]=1.C1C=C[NH+]=CC=1.COC(C)C>ClCCl.CC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:12][C@H:11]([O:13][CH2:14][C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH2:10][C@@H:9]1[C@H:21]1[O:36][C:38]([CH3:39])([CH3:37])[N:32]([C:33](=[O:35])[CH3:34])[C@H:22]1[CH2:23][C:24]1[CH:29]=[C:28]([F:30])[CH:27]=[C:26]([F:31])[CH:25]=1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

참가 물질

5

반응물 3

HCID 117212-MethoxypropaneHCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 68817282(2R,4R)-2-[(1S,2S)-2-Acetylamino-3-(3,5-difluoro-phenyl)-1-hydroxy-propyl]-4-benzyloxy-pyrrolidine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 68814284(2R,4R)-2-[(4S,5S)-3-Acetyl-4-(3,5-difluoro-benzyl)-2,2-dimethyl-oxazolidin-5-yl]-4-benzyloxy-pyrrolidine-1-carboxylic acid tert-butyl ester수율 734.4%

시약·촉매·용매 1

HCID 21584124Propan-2-one--dichloromethane (1/1)용매

실험 절차

Dissolve (2R,4R)-2-[(1S,2S)-2-Acetylamino-3-(3,5-difluoro-phenyl)-1-hydroxy-propyl]-4-benzyloxy-pyrrolidine-1-carboxylic acid tert-butyl ester (0.150 g, 0.3 mmol) in 1:1 dichloromethane/acetone (5 mL). Add PPTS (pyridine/p-toluene sulfonic acid) (0.03 mmol) and 2-methoxypropane (1.5 mmol). When the reaction is complete by TLC (15 minutes), concentrate the reaction mixture under reduced pressure. Dissolve the residue in ethyl acetate and wash with saturated aqueous sodium bicarbonate followed by saturated aqueous sodium chloride. Dry over magnesium sulfate, concentrate under reduced pressure, and subject the residue to silica gel chromatography, eluting with ethyl acetate/hexane to provide the desired compound (0.120 g, 75%).

후처리

  1. customis complete by TLC (15 minutes)
  2. concentrationconcentrate the reaction mixture under reduced pressure
  3. dissolutionDissolve the residue in ethyl acetate
  4. washwash with saturated aqueous sodium bicarbonate
  5. dry with materialDry over magnesium sulfate
  6. concentrationconcentrate under reduced pressure
  7. washeluting with ethyl acetate/hexane

출처 및 근거

ORD 기록
ord-f840b3c87d344e82962d2d74ddff01fe
출처 데이터셋
uspto-grants-2009_09
특허 번호
US07585885B2

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