Piperidine-1-carbothioamide → 4-(2,4-Difluorophenyl)-5-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)-2-(piperidin-1-yl)thiazole

HRID 1929991ノート

反応式

HRID 1929991 の反応式
Br[CH:2]([C:13]1[CH:14]=[CH:15][C:16]2[N:17]([C:19]([CH:22]([CH3:24])[CH3:23])=[N:20][N:21]=2)[N:18]=1)[C:3]([C:5]1[CH:10]=[CH:9][C:8]([F:11])=[CH:7][C:6]=1[F:12])=O.[N:25]1([C:31](=[S:33])[NH2:32])[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]1>CCO>[F:12][C:6]1[CH:7]=[C:8]([F:11])[CH:9]=[CH:10][C:5]=1[C:3]1[N:32]=[C:31]([N:25]2[CH2:30][CH2:29][CH2:28][CH2:27][CH2:26]2)[S:33][C:2]=1[C:13]1[CH:14]=[CH:15][C:16]2[N:17]([C:19]([CH:22]([CH3:24])[CH3:23])=[N:20][N:21]=2)[N:18]=1

参加物

4

反応物 2

HCID 1551232Piperidine-1-carbothioamideHCID 579298612-Bromo-1-(2,4-difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone

生成物 1

HCID 579299704-(2,4-Difluorophenyl)-5-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)-2-(piperidin-1-yl)thiazole収率 39%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

A mixture of 2-bromo-1-(2,4-difluorophenyl)-2-(3-isopropyl-[1,2,4]triazolo[4,3-b]pyridazin-6-yl)ethanone (0.250 g, 0.632 mmol; Preparation #A.2) and piperidine-1-carbothioamide (Oakwood Products Inc., 0.082 g, 0.57 mmol) in EtOH (3 mL) was heated to reflux for about 3 h. After cooling to ambient temperature, the crude mixture was partitioned between DCM and water. The organics were dried over MgSO4, filtered, concentrated under reduced pressure, and purified by silica gel chromatography using heptane/EtOAc (linear gradient, 50:50 to 0:100) to give the title compound (0.098 g, 35%): LC/MS (Table 1, Method a) Rt=4.18 min; MS m/z: 441.8 (M+H)+.

後処理

  1. temperaturewas heated
  2. temperatureto reflux for about 3 h
  3. customthe crude mixture was partitioned between DCM and water
  4. dry with materialThe organics were dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. custompurified by silica gel chromatography

出典と根拠

ORDレコード
ord-92d717cd8b5c411da3d75d88fc15cb9d
出典データセット
uspto-grants-2012_05
特許番号
US08188083B2

反応ノート

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