Potassium Carbonate → ethyl 3-{[(2R, 4R)-2-(4,5-diphenyloxazol-2-yl)-4-hydroxypyrrolidin-1-yl]methyl}phenoxyacetate

HRID 431761노트

반응식

HRID 431761 반응식
[C:1]1([C:7]2[N:8]=[C:9]([C@H:18]3[CH2:22][C@@H:21]([OH:23])[CH2:20][NH:19]3)[O:10][C:11]=2[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:31][C:32]1[CH:33]=[C:34]([CH:42]=[CH:43][CH:44]=1)[O:35][CH2:36][C:37]([O:39][CH2:40][CH3:41])=[O:38]>CN(C=O)C.CCOC(C)=O>[C:1]1([C:7]2[N:8]=[C:9]([C@H:18]3[CH2:22][C@@H:21]([OH:23])[CH2:20][N:19]3[CH2:31][C:32]3[CH:33]=[C:34]([CH:42]=[CH:43][CH:44]=3)[O:35][CH2:36][C:37]([O:39][CH2:40][CH3:41])=[O:38])[O:10][C:11]=2[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 11459982Ethyl 3-(bromomethyl)phenoxyacetateHCID 11460944(2R, 4R)-2-(4,5-diphenyloxazol-2-yl)pyrrolidin-4-ol

생성물 1

HCID 11156247ethyl 3-{[(2R, 4R)-2-(4,5-diphenyloxazol-2-yl)-4-hydroxypyrrolidin-1-yl]methyl}phenoxyacetate수율 96.5%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

To a mixture of (2R, 4R)-2-(4,5-diphenyloxazol-2-yl)pyrrolidin-4-ol (229 mg) and potassium carbonate (155 mg) in DMF (5 mL) was added ethyl 3-(bromomethyl)phenoxyacetate (245 mg) at 5° C. and stirred at the same temperature for 30 minutes then at room temperature for 16 hours. The reaction mixture was diluted with EtOAc, washed with water and brine, dried (MgSO4), and evaporated in vacuo. The residue was purified by silica gel column chromatography (hexane-EtOAc, 1:2) to give ethyl 3-{[(2R, 4R)-2-(4,5-diphenyloxazol-2-yl)-4-hydroxypyrrolidin-1-yl]methyl}phenoxyacetate (359.7 mg).

후처리

  1. waitat room temperature for 16 hours
  2. washwashed with water and brine
  3. dry with materialdried (MgSO4)
  4. customevaporated in vacuo
  5. customThe residue was purified by silica gel column chromatography (hexane-EtOAc, 1:2)

출처 및 근거

ORD 기록
ord-bb7f67299e8f469abe33e68ee55ec233
출처 데이터셋
uspto-grants-2003_12
특허 번호
US06660759B1

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