Water → methyl N-[[2-chloro-5-[1-[3-(1-methylethyl)-1,2,4-thiadiazol-5-yl]-1H-pyrazol-3-yl]phenyl]methyl]carbamate

HRID 1496649

反応式

HRID 1496649 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:12]=[CH:11][NH:10][N:9]=2)=[CH:4][C:3]=1[CH2:13][NH:14][C:15](=[O:18])[O:16][CH3:17].Cl[C:20]1[S:24][N:23]=[C:22]([CH:25]([CH3:27])[CH3:26])[N:21]=1.C(=O)([O-])[O-].[K+].[K+].O>CN1CCCC1=O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:12]=[CH:11][N:10]([C:20]3[S:24][N:23]=[C:22]([CH:25]([CH3:27])[CH3:26])[N:21]=3)[N:9]=2)=[CH:4][C:3]=1[CH2:13][NH:14][C:15](=[O:18])[O:16][CH3:17]

参加物

6

反応条件

温度
165 °C

実験手順

A mixture of methyl N-[[2-chloro-5-(1H-pyrazol-3-yl)phenyl]methyl]carbamate (i.e. the product of Step B, Example 4) (0.02 g, 0.75 mmol), 5-chloro-3-(1-methylethyl)-1,2,4-thiadiazole (i.e. the product of Step A) (0.61 g, 3.75 mmol) and potassium carbonate (0.25 g, 1.5 mmol) in N-methyl-2-pyrrolidinone (2.5 mL) was heated in a Biotage Creator XM microwave apparatus at 165° C. for 15 minutes. The reaction mixture was poured into water (60 mL), and the aqueous mixture was extracted with ethyl acetate (2×50 mL). The combined organic extracts were washed with water, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by medium pressure liquid chromatography (0 to 100% gradient of ethyl acetate in hexanes as eluant) to provide the title compound, a compound of the present invention, as a solid (0.5 g).

後処理

  1. extractionthe aqueous mixture was extracted with ethyl acetate (2×50 mL)
  2. washThe combined organic extracts were washed with water
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue was purified by medium pressure liquid chromatography (0 to 100% gradient of ethyl acetate in hexanes as eluant)

出典と根拠

ORDレコード
ord-608a571d25ee44bcb4ed761127bee3a2
出典データセット
uspto-grants-2015_12
特許番号
US09198433B2

関連ノート

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