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Triethylamine → 4-(4-Bromo-2-fluorophenylamino)-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (2-vinyloxyethoxy)-amide
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | 1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide | HCID 15908 | — |
| 反応物 | 1-Hydroxybenzotriazole | HCID 75771 | — |
| 反応物 | 4-(4-Bromo-2-fluorophenylamino)-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid | HCID 11580925 | — |
| 反応物 | O-(2-(Vinyloxy)ethyl)hydroxylamine | HCID 21867017 | — |
| 溶媒 | Dimethylformamide | HCID 6228 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | 4-(4-Bromo-2-fluorophenylamino)-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (2-vinyloxyethoxy)-amide | HCID 11546369 | 52% |
反応手順
A mixture of 4-(4-bromo-2-fluorophenylamino)-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (0.120 g, 0.352 mmol), EDCI (0.10 g, 0.53 mmol), and HOBt (0.071 g, 0.53 mmol) in DMF (5 mL) was stirred for 3 hours. O-(2-Vinyloxy-ethyl)-hydroxylamine (0.071 mL, 0.70 mmol) was added followed by Et3N (0.098 mL, 0.70 mmol). After 2 hours, the reaction mixture was diluted with EtOAc and washed with saturated NH4Cl solution, saturated NaHCO3 solution and brine. The organic layer was dried (MgSO4) and concentrated under reduced pressure. Purification by flash column chromatography (3% MeOH in methylene chloride) gave 0.078 g (52%) clean desired product.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07732616B2 |
| 出典データセット | uspto-grants-2010_06 |
| ORD ID | ord-dc4178c3ca6e49189ca7163a085139a1 |
| 出典メモ | uspto-grants-2010_06 |