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Diisopropylethylamine → Ethyl 2-{3-[(tert-butoxycarbonyl)amino]azetidin-1-yl}-4-isopropyl-1,3-thiazole-5-carboxylate

HRID 43882
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HRID 43882 반응식
[C:1]([O:5][C:6]([NH:8][CH:9]1[CH2:12][NH:11][CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[C:14]1[S:15][C:16]([C:22]([O:24][CH2:25][CH3:26])=[O:23])=[C:17]([CH:19]([CH3:21])[CH3:20])[N:18]=1.C(N(C(C)C)CC)(C)C>CN(C=O)C.C(OCC)(=O)C>[C:1]([O:5][C:6]([NH:8][CH:9]1[CH2:10][N:11]([C:14]2[S:15][C:16]([C:22]([O:24][CH2:25][CH3:26])=[O:23])=[C:17]([CH:19]([CH3:20])[CH3:21])[N:18]=2)[CH2:12]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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참가 물질

6

반응물 3

HCID 81531DiisopropylethylamineHCID 15194053-Aminoazetidine, 3-BOC protectedHCID 9943530Ethyl 2-bromo-4-isopropylthiazole-5-carboxylate

생성물 1

HCID 67548483Ethyl 2-{3-[(tert-butoxycarbonyl)amino]azetidin-1-yl}-4-isopropyl-1,3-thiazole-5-carboxylate수율 66%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매
HCID 8857
Ethyl Acetate
용매

실험 절차

A solution of 3-tert-butoxycarbonylaminoazetidine (136 mg, 0.79 mmol), ethyl 2-bromo-4-isopropyl-1,3-thiazole-5-carboxylate obtained in Example (23b) (200 mg, 0.72 mmol) and diisopropylethylamine (0.25 mL, 1.44 mmol) in DMF (8 mL) was stirred at 90° C. for 11 hours. The reaction solution was diluted with ethyl acetate, and then the mixture was washed with 10% saline and dried over anhydrous magnesium sulfate. Following filtration, the solvent was evaporated under reduced pressure. The resulting residue was purified by silica gel column chromatography (elution solvent: hexane/ethyl acetate=4/1) to obtain 175 mg of the title compound as a white solid (66%).

후처리

  1. washthe mixture was washed with 10% saline
  2. dry with materialdried over anhydrous magnesium sulfate
  3. filtrationfiltration
  4. customthe solvent was evaporated under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography (elution solvent: hexane/ethyl acetate=4/1)

출처 및 근거

ORD 기록
ord-99c2381ecc4b4614b08aeb3b6ae8d7af
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08536197B2

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