Triethylamine → Tert-butyl (2S,4R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-4-hydroxypyrrolidine-1-carboxylate

HRID 495053노트

반응식

HRID 495053 반응식
[OH:1][C@H:2]1[CH2:6][N:5]([C:7]([O:9][C:10]([CH3:13])([CH3:12])[CH3:11])=[O:8])[C@H:4]([CH2:14][OH:15])[CH2:3]1.CCN(CC)CC.[CH3:23][C:24]([Si:27](Cl)([CH3:29])[CH3:28])([CH3:26])[CH3:25]>ClCCl.CN(C1C=CN=CC=1)C>[Si:27]([O:15][CH2:14][C@@H:4]1[CH2:3][C@@H:2]([OH:1])[CH2:6][N:5]1[C:7]([O:9][C:10]([CH3:11])([CH3:12])[CH3:13])=[O:8])([C:24]([CH3:26])([CH3:25])[CH3:23])([CH3:29])[CH3:28]

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 11275979N-Boc-trans-4-hydroxy-L-prolinol

생성물 1

HCID 11174939Tert-butyl (2S,4R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-4-hydroxypyrrolidine-1-carboxylate수율 95%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매2회

실험 절차

To a 0° C. solution of (2S,4R)-tert-butyl 4-hydroxy-2-(hydroxymethyl)pyrrolidine-1-carboxylate (1.0 equiv) and Et3N (1.05 equiv) in dichloromethane (0.5 M) was added TBSCl (1.05 equiv), followed by a few crystals of DMAP. The solution was allowed to warm to room temperature and stirred overnight. The reaction mixture was then diluted with dichloromethane, and washed with sat'd. aq. NaHCO3. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to provide the title compound (95%), which was used without further purification.

후처리

  1. washwashed with sat'd
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-ccf578ce0ab24a0da2ac4118bee88cce
출처 데이터셋
uspto-grants-2009_05
특허 번호
US07538223B2

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