Sulfoxonium, trimethyl-, iodide (1:1) → 2-(4-(1,3-Dioxan-2-yl)-2-fluorophenyl)-5-(1-(3,3-difluoro-cyclobutyl)cyclopropyl)thiazolo[5,4-b]pyridine

HRID 1177598ノート

反応式

HRID 1177598 の反応式
[O:1]1[CH2:6][CH2:5][CH2:4][O:3][CH:2]1[C:7]1[CH:12]=[CH:11][C:10]([C:13]2[S:14][C:15]3[C:20]([N:21]=2)=[CH:19][CH:18]=[C:17]([C:22]([CH:24]2[CH2:27][C:26]([F:29])([F:28])[CH2:25]2)=[CH2:23])[N:16]=3)=[C:9]([F:30])[CH:8]=1.[I-].[CH3:32][S+](C)(C)=O.CC([O-])(C)C.[K+]>C1COCC1.CS(C)=O>[O:3]1[CH2:4][CH2:5][CH2:6][O:1][CH:2]1[C:7]1[CH:12]=[CH:11][C:10]([C:13]2[S:14][C:15]3[C:20]([N:21]=2)=[CH:19][CH:18]=[C:17]([C:22]2([CH:24]4[CH2:27][C:26]([F:29])([F:28])[CH2:25]4)[CH2:32][CH2:23]2)[N:16]=3)=[C:9]([F:30])[CH:8]=1

参加物

6

反応物 3

HCID 74498Sulfoxonium, trimethyl-, iodide (1:1)HCID 23665647Potassium tert-butoxideHCID 671119192-(4-(1,3-Dioxan-2-yl)-2-fluorophenyl)-5-(1-(3,3-difluoro-cyclobutyl)vinyl)thiazolo[5,4-b]pyridine

生成物 1

HCID 671115762-(4-(1,3-Dioxan-2-yl)-2-fluorophenyl)-5-(1-(3,3-difluoro-cyclobutyl)cyclopropyl)thiazolo[5,4-b]pyridine

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
60 °C

実験手順

A solution of 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-5-(1-(3,3-difluoro-cyclobutyl)vinyl)thiazolo[5,4-b]pyridine (299.1 mg, 0.692 mmol) in THF (13.33 mL) was added a solution of trimethylsulfoxonium iodide (913 mg, 4.15 mmol) and potassium 2-methylpropan-2-olate (466 mg, 4.15 mmol) in DMSO (8.0 mL) under argon, and the resulting solution was stirred at 60° C. for 2.5 h. The reaction mixture was then cooled to 25° C., THF was removed in vacuo, and the residual mixture was diluted with DCM (200 mL). The resulting solution was sequentially washed with sat. aq. NH4Cl and brine). The combined aqueous layers were extracted with DCM, and the combined organic layers were then dried over sodium sulfate, filtered, and concentrated in vacuo. Chromatographic purification of the residue (silica gel, 0-70% EtOAc/hexanes) furnished 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-5-(1-(3,3-difluoro-cyclobutyl)cyclopropyl)thiazolo[5,4-b]pyridine as a light yellow solid. MS (ESI) m/z: Calculated: 446.1; Observed: 447.1 (M++1).

後処理

  1. temperatureThe reaction mixture was then cooled to 25° C.
  2. customTHF was removed in vacuo
  3. additionthe residual mixture was diluted with DCM (200 mL)
  4. washThe resulting solution was sequentially washed with sat. aq. NH4Cl and brine)
  5. extractionThe combined aqueous layers were extracted with DCM
  6. dry with materialthe combined organic layers were then dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customChromatographic purification of the residue (silica gel, 0-70% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-5965e2e4166f428ab9208b120fc8e08c
出典データセット
uspto-grants-2010_11
特許番号
US07842685B2

反応ノート

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