Pyridine → (S)-N-(3-(1-ethyl-1H-pyrazol-5-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-3-(1,4-dioxaspiro[4.5]decan-2-yl)-1,2,4-thiadiazol-5-amine

HRID 534040ノート

反応式

HRID 534040 の反応式
[N-:1]=[C:2]=[S:3].[Na+].N1C=CC=CC=1.CS(O[N:16]=[C:17](Cl)[C@H:18]1[CH2:22][O:21][C:20]2([CH2:27][CH2:26][CH2:25][CH2:24][CH2:23]2)[O:19]1)(=O)=O.[CH2:29]([N:31]1[C:35]([O:36][C:37]2[C:38]([NH2:50])=[N:39][CH:40]=[C:41]([S:43][C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][N:45]=3)[CH:42]=2)=[CH:34][CH:33]=[N:32]1)[CH3:30]>CCOC(C)=O.[OH-].[Na+]>[CH2:29]([N:31]1[C:35]([O:36][C:37]2[C:38]([NH:50][C:2]3[S:3][N:16]=[C:17]([C@H:18]4[CH2:22][O:21][C:20]5([CH2:23][CH2:24][CH2:25][CH2:26][CH2:27]5)[O:19]4)[N:1]=3)=[N:39][CH:40]=[C:41]([S:43][C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][N:45]=3)[CH:42]=2)=[CH:34][CH:33]=[N:32]1)[CH3:30]

参加物

7

反応物 4

HCID 1049PyridineHCID 10953423IsothiocyanatosodiumHCID 674860483-(1-ethyl-1H-pyrazol-5-yloxy)-5-(pyridin-2-ylthio)pyridin-2-amineHCID 86644147(R)-N-(methylsulfonyloxy)-1,4-dioxaspiro[4.5]decane-2-carbimidoyl chloride

生成物 1

HCID 68472914(S)-N-(3-(1-ethyl-1H-pyrazol-5-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-3-(1,4-dioxaspiro[4.5]decan-2-yl)-1,2,4-thiadiazol-5-amine収率 6,470.6%

試薬・触媒・溶媒 2

HCID 8857Ethyl Acetate溶媒2 回HCID 14798Sodium Hydroxide溶媒

反応条件

温度
50 °C

実験手順

To 75 mL of EtOAc was added sodium isothiocyanate (0.579 g, 7.15 mmol), pyridine (0.874 ml, 10.7 mmol) and (R)-N-(methylsulfonyloxy)-1,4-dioxaspiro[4.5]decane-2-carbimidoyl chloride (2.13 g, 7.15 mmol) and the reaction was heated to 50° C. for 30 minutes. The reaction mixture was added to 3-(1-ethyl-1H-pyrazol-5-yloxy)-5-(pyridin-2-ylthio)pyridin-2-amine (1.12 g, 3.57 mmol) and the reaction was stirred for 65 hours at 75° C. The reaction was cooled and diluted with 50 ml EtOAc and 75 ml 1N NaOH. The aqueous layer was extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and concentrated. The residue was purified over silica gel (75% EtOAc/Hexanes) to afford (S)-N-(3-(1-ethyl-1H-pyrazol-5-yloxy)-5-(pyridin-2-ylthio)pyridin-2-yl)-3-(1,4-dioxaspiro[4.5]decane-2-yl)-1,2,4-thiadiazol-5-amine (1.24 g, 231 mmol, 64.5% yield) as a tan solid.

後処理

  1. temperatureThe reaction was cooled
  2. extractionThe aqueous layer was extracted with EtOAc
  3. dry with materialThe organic layer was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified over silica gel (75% EtOAc/Hexanes)

出典と根拠

ORDレコード
ord-7758d9b37361487c89cfd9715fa995f6
出典データセット
uspto-grants-2014_10
特許番号
US08853409B2

反応ノート

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