Diisopropylethylamine → (R)-3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-chlorobenzyl)piperazine-1-carboxylate

HRID 856195노트

반응식

HRID 856195 반응식
[Cl:1][C:2]1[N:3]([CH2:10][C@:11]([OH:15])([CH3:14])[CH2:12][OH:13])[CH:4]=[C:5]([N+:7]([O-:9])=[O:8])[N:6]=1.C(N(CC)C(C)C)(C)C.[Cl:25][C:26]1[CH:41]=[CH:40][C:29]([CH2:30][N:31]2[CH2:36][CH2:35][N:34]([C:37](Cl)=[O:38])[CH2:33][CH2:32]2)=[CH:28][CH:27]=1>CN(C)C1C=CN=CC=1.C1(C)C=CC=CC=1.C(OCC)(=O)C>[Cl:25][C:26]1[CH:41]=[CH:40][C:29]([CH2:30][N:31]2[CH2:32][CH2:33][N:34]([C:37]([O:13][CH2:12][C@@:11]([OH:15])([CH3:14])[CH2:10][N:3]3[CH:4]=[C:5]([N+:7]([O-:9])=[O:8])[N:6]=[C:2]3[Cl:1])=[O:38])[CH2:35][CH2:36]2)=[CH:28][CH:27]=1

참가 물질

7

반응물 3

HCID 81531DiisopropylethylamineHCID 16099121(R)-3-(2-Chloro-4-nitro-1H-imidazol-1-yl)-2-methylpropane-1,2-diolHCID 230815584-(4-Chlorobenzyl)piperazine-1-carbonylchloride

생성물 1

HCID 69480796(R)-3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-chlorobenzyl)piperazine-1-carboxylate수율 48%

시약·촉매·용매 3

HCID 142844-(Dimethylamino)pyridine촉매HCID 1140Toluene용매HCID 8857Ethyl Acetate용매

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온도
100 °C

실험 절차

(R)-2-Chloro-1-(2,3-dihydroxy-2-methyl)propyl-4-nitroimidazole prepared in Example 10 (2.28 g, 9.66 mmol), N,N-diisopropylethylamine (2.81 ml, 16.10 mmol) and 4-dimethylaminopyridine (0.20 g, 1.61 mmol) were added to a suspension of 4-(4-chlorobenzyl)piperazine-1-carbonylchloride (2.20 g, 8.05 mmol) in toluene (30 ml) followed by stirring 100° C. for 3 hours. The reaction 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 (R)-3-(2-chloro-4-nitroimidazol-1-yl)-2-hydroxy-2-methylpropyl 4-(4-chlorobenzyl)piperazine-1-carboxylate (1.82 g, yield 48%) as a 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-c9ba43734fa54765a6182071b9ef7c76
출처 데이터셋
uspto-grants-2007_08
특허 번호
US07262212B2

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