Water → (R)-3-[3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl]-5-(4-trifluoromethoxyphenyl)-3H-[1,3,4]oxadiazol-2-one

HRID 856352노트

반응식

HRID 856352 반응식
[F:1][C:2]([F:17])([F:16])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[O:14][C:13](=[O:15])[NH:12][N:11]=2)=[CH:6][CH:5]=1.[Cl:18][C:19]1[N:20]([CH2:27][C@:28]2([CH3:31])[CH2:30][O:29]2)[CH:21]=[C:22]([N+:24]([O-:26])=[O:25])[N:23]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[Cl:18][C:19]1[N:20]([CH2:27][C@:28]([OH:29])([CH3:30])[CH2:31][N:12]2[N:11]=[C:10]([C:7]3[CH:6]=[CH:5][C:4]([O:3][C:2]([F:1])([F:16])[F:17])=[CH:9][CH:8]=3)[O:14][C:13]2=[O:15])[CH:21]=[C:22]([N+:24]([O-:26])=[O:25])[N:23]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 10443353(R)-2-chloro-1-(2-methyloxiran-2-ylmethyl)-4-nitroimidazoleHCID 230813495-(4-trifluoromethoxyphenyl)-3H-[1,3,4]oxadiazol-2-one

생성물 1

HCID 69481895(R)-3-[3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl]-5-(4-trifluoromethoxyphenyl)-3H-[1,3,4]oxadiazol-2-one수율 99.4%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 5-(4-trifluoromethoxy-phenyl)-3H-[1,3,4]oxadiazol-2-one (0.68 g, 2.76 mmol) and (R)-2-chloro-1-(2-methyloxiran-2-ylmethyl)-4-nitroimidazole prepared in Example 12 (0.50 g, 2.30 mmol) in DMF (5 ml), potassium carbonate (0.38 g, 2.76 mmol) was added followed by stirring at room temperature for 16 hours, and then water was added. The solution was extracted with ethyl acetate, dried over magnesium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (methylene chloride/ethyl acetate=4/1) to afford (R)-3-[3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl]-5-(4-trifluoromethoxyphenyl)-3H-[1,3,4]oxadiazol-2-one (1.06 g, quantitative yield) as a white amorphous form.

후처리

  1. extractionThe solution was extracted with ethyl acetate
  2. dry with materialdried over magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (methylene chloride/ethyl acetate=4/1)

출처 및 근거

ORD 기록
ord-949fe28f32954dbf8e2722fc303d814f
출처 데이터셋
uspto-grants-2007_08
특허 번호
US07262212B2

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