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O-Methylhydroxylamine hydrochloride → 2-(3-chloro-4-methanesulfonyl-phenyl)-3-(4-methoxyimino-cyclohexyl)-N-pyrazin-2-yl-propionamide

HRID 854853
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반응식

HRID 854853 반응식
Cl.[O:2]([NH2:4])[CH3:3].[Cl:5][C:6]1[CH:7]=[C:8]([CH:16]([CH2:26][CH:27]2[CH2:32][CH2:31][C:30](=O)[CH2:29][CH2:28]2)[C:17]([NH:19][C:20]2[CH:25]=[N:24][CH:23]=[CH:22][N:21]=2)=[O:18])[CH:9]=[CH:10][C:11]=1[S:12]([CH3:15])(=[O:14])=[O:13]>CO.N1C=CC=CC=1>[Cl:5][C:6]1[CH:7]=[C:8]([CH:16]([CH2:26][CH:27]2[CH2:32][CH2:31][C:30](=[N:4][O:2][CH3:3])[CH2:29][CH2:28]2)[C:17]([NH:19][C:20]2[CH:25]=[N:24][CH:23]=[CH:22][N:21]=2)=[O:18])[CH:9]=[CH:10][C:11]=1[S:12]([CH3:15])(=[O:13])=[O:14]
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참가 물질

5

반응물 2

HCID 521874O-Methylhydroxylamine hydrochlorideHCID 103429592-(3-chloro-4-methanesulfonyl-phenyl)-3-(4-oxo-cyclohexyl)-N-pyrazin-2-yl-propionamide

생성물 1

HCID 219589762-(3-chloro-4-methanesulfonyl-phenyl)-3-(4-methoxyimino-cyclohexyl)-N-pyrazin-2-yl-propionamide수율 81.2%

시약·촉매·용매 2

HCID 887Methanol용매HCID 1049Pyridine
용매

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온도
25 °C

실험 절차

A solution of methoxylamine hydrochloride (23 mg, 0.27 mmol) in methanol (0.5 mL) and pyridine (0.5 mL) was treated with 2-(3-chloro-4-methanesulfonyl-phenyl)-3-(4-oxo-cyclohexyl)-N-pyrazin-2-yl-propionamide (prepared as in Example 58, 80 mg, 0.18 mmol). The reaction mixture was heated under reflux for 2 h, cooled to 25° C., and concentrated in vacuo to remove methanol. The resulting residue was suspended in ethyl acetate (10 mL), washed with water 1×5 mL), dried over magnesium sulfate, filtered, and concentrated in vacuo. Biotage chromatography (FLASH 12M, Silica, 35/65 hexanes/ethyl acetate) afforded 2-(3-chloro-4-methanesulfonyl-phenyl)-3-(4-methoxyimino-cyclohexyl)-N-pyrazin-2-yl-propionamide (68 mg, 81%) was a white foam: EI-HRMS m/e calcd for C21H25ClN4O4S (M+H)+ 465.1358. found 465.1364.

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureunder reflux for 2 h
  3. concentrationconcentrated in vacuo
  4. customto remove methanol
  5. washwashed with water 1×5 mL),
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-4cbc567837b74ac290a7076acb449abb
출처 데이터셋
uspto-grants-2007_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07259166B2

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