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Diisopropylethylamine → 3-(2-Chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-trifluoromethoxyphenyl)piperazine-1-carboxylate

HRID 856190
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HRID 856190 반응식
[F:1][C:2]([F:20])([F:19])[O:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][N:13]([C:16](Cl)=[O:17])[CH2:12][CH2:11]2)=[CH:6][CH:5]=1.C(N(CC)C(C)C)(C)C.[Cl:30][C:31]1[N:32]([CH2:39][C:40]([OH:44])([CH3:43])[CH2:41][OH:42])[CH:33]=[C:34]([N+:36]([O-:38])=[O:37])[N:35]=1>CN(C)C1C=CN=CC=1.C1(C)C=CC=CC=1.C(OCC)(=O)C>[F:1][C:2]([F:20])([F:19])[O:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[CH2:15][CH2:14][N:13]([C:16]([O:42][CH2:41][C:40]([OH:44])([CH3:43])[CH2:39][N:32]3[CH:33]=[C:34]([N+:36]([O-:38])=[O:37])[N:35]=[C:31]3[Cl:30])=[O:17])[CH2:12][CH2:11]2)=[CH:6][CH:5]=1
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참가 물질

7

반응물 3

HCID 81531DiisopropylethylamineHCID 23081081(2R)-3-(2-Chloro-4-nitro-1H-imidazol-1-yl)-2-methyl-1,2-propanediolHCID 230812344-(4-Trifluoromethoxyphenyl)piperazine-1-carbonylchloride

생성물 1

HCID 694795383-(2-Chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-trifluoromethoxyphenyl)piperazine-1-carboxylate수율 55.6%

시약·촉매·용매 3

HCID 14284
4-(Dimethylamino)pyridine
촉매
HCID 1140Toluene용매
HCID 8857Ethyl Acetate용매

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온도
100 °C

실험 절차

4-(4-Trifluoromethoxyphenyl)piperazine-1-carbonylchloride (0.26 g, 0.85 mmol), N,N-diisopropylethylamine (0.30 ml, 1.7 mmol) and 4-dimethylaminopyridine (21 mg, 0.17 mmol) were added to a suspension of 2-chloro-1-(2,3-dihydroxy-2-methylpropyl)-4-nitroimidazol prepared in Example 3 (0.30 g, 1.3 mmol) in toluene (5 ml) followed by stirring at 100° C. for 2.5 hours. The mixture was diluted with ethyl acetate, washed with water, dried over magnesium sulfate and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (methylene chloride/ethyl acetate=9/1) to afford 3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-trifluoromethoxyphenyl)piperazine-1-carboxylate (0.24 g, yield 55%) as a light yellow oil.

후처리

  1. washwashed with water
  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=9/1)

출처 및 근거

ORD 기록
ord-8f375fd7d9a74aeb8bc51c57aa3435be
출처 데이터셋
uspto-grants-2007_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07262212B2

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