4-bromo-2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-5-(1-((2-(trimethylsilyl)ethoxy)methyl)-1H-1,2,4-triazol-3-yl)thiazole → 3-[4-(4-Chlorobenzyl)-5-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,2,4-triazol-3-yl)-1,3-thiazol-2-yl]-2-methylpyrazolo[1,5-a]pyridine

HRID 2401765ノート

反応式

HRID 2401765 の反応式
Br[C:2]1[N:3]=[C:4]([C:20]2[C:21]([CH3:29])=[N:22][N:23]3[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=23)[S:5][C:6]=1[C:7]1[N:11]=[CH:10][N:9]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[N:8]=1.[Cl-].[Cl:31][C:32]1[CH:39]=[CH:38][C:35]([CH2:36][Zn+])=[CH:34][CH:33]=1>O1CCCC1.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[Cl:31][C:32]1[CH:39]=[CH:38][C:35]([CH2:36][C:2]2[N:3]=[C:4]([C:20]3[C:21]([CH3:29])=[N:22][N:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=34)[S:5][C:6]=2[C:7]2[N:11]=[CH:10][N:9]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[N:8]=2)=[CH:34][CH:33]=1

参加物

5

反応物 2

HCID 580948524-bromo-2-(2-methylpyrazolo[1,5-a]pyridin-3-yl)-5-(1-((2-(trimethylsilyl)ethoxy)methyl)-1H-1,2,4-triazol-3-yl)thiazoleHCID 178478120HCID 178478120、化合物2 回

生成物 1

HCID 667494813-[4-(4-Chlorobenzyl)-5-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,2,4-triazol-3-yl)-1,3-thiazol-2-yl]-2-methylpyrazolo[1,5-a]pyridine収率 86%

試薬・触媒・溶媒 2

HCID 178418851HCID 178418851、化合物触媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
60 °C

実験手順

To a solution of 3-[4-bromo-5-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,2,4-triazol-3-yl)-1,3-thiazol-2-yl]-2-methylpyrazolo[1,5-a]pyridine (0.200 g, 0.407 mmol) in tetrahydrofuran (2.8 mL) were added 4-chlorobenzylzinc chloride (0.50M solution in tetrahydrofuran, 1.63 mL, 0.814 mmol) and bis(tri-t-butylphosphine)palladium(0) (0.0156 g, 0.0305 mmol) under argon. The solution was stirred at 60° C. for 3 hours. The reaction was incomplete by LCMS, so additional 4-chlorobenzylzinc chloride (0.50M solution in tetrahydrofuran, 1.0 mL, 0.5 mmole) was added then the reaction was stirred at 60° C. for an additional 3 hours. The reaction was cooled to room temperature then the solvent was evaporated in vacuo. The residue was purified by column chromatography (SiO2, elution with EtOAc in hexanes 10-100% gradient) to yield the title compound (0.188 g, 86%). LCMS: (FA) ES+ , 538. 1H NMR (400 MHz, d6-DMSO) δ: 8.87 (s, 1H), 8.76-8.72 (m, 1H), 8.28-8.24 (m, 1H), 7.54-7.48 (m, 1H), 7.44-7.40 (m, 2H), 7.35-7.30 (m, 2H), 7.09-7.03 (m, 1H), 5.58 (s, 2H), 4.63 (s, 2H), 3.68-3.62 (m, 2H), 2.66 (s, 3H), 0.91-0.84 (m, 2H), 0.050 (s, 9H).

後処理

  1. additionwas added
  2. stirringthe reaction was stirred at 60° C. for an additional 3 hours
  3. temperatureThe reaction was cooled to room temperature
  4. customthe solvent was evaporated in vacuo
  5. customThe residue was purified by column chromatography (SiO2, elution with EtOAc in hexanes 10-100% gradient)

出典と根拠

ORDレコード
ord-680838ea83824906bc319e213d3468a3
出典データセット
uspto-grants-2014_08
特許番号
US08796268B2

反応ノート

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