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Water → 6,7-Dimethoxy-4-(3,4-dimethoxyphenyl)-2-(2-ethylimidazol-1-ylmethyl)quinoline-3-carboxylic acid ethyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | Sodium hydride | HCID 24758 | — |
| 反応物 | 2-Ethylimidazole | HCID 66130 | — |
| 反応物 | Ethyl 2-chloromethyl-4-(3,4-dimethoxyphenyl)-6,7-dimethoxyquinoline-3-carboxylate | HCID 10813243 | — |
| 溶媒 | Dimethylformamide | HCID 6228 | — |
| 生成物 | 6,7-Dimethoxy-4-(3,4-dimethoxyphenyl)-2-(2-ethylimidazol-1-ylmethyl)quinoline-3-carboxylic acid ethyl ester | HCID 10815422 | 74% |
反応手順
Oily sodium hydride (60%, 0.323 g) was added to a solution of 2-ethylimidazole (0.776 g) in N,N-dimethylformamide (30 ml), and the mixture was stirred at room temperature for 15 minutes. Then ethyl 2-chloromethyl-6,7-dimethoxy-4-(3,4-dimethoxyphenyl)quinoline-3-carboxylate(3.0 g) was added. The mixture was stirred at 80° C. for 1 hour and poured into water, and the resulting crystals were collected by filtration and recrystallized from ethanol to give ethyl 2-(2-ethylimidazol-1-ylmethyl)-6,7-dimethoxy-4-(3,4-dimethoxyphenyl)quinoline-3-carboxylate (2.5 g, 74%). Colorless prisms. mp. 163°-164° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05852039 |
| 出典データセット | uspto-grants-1998_12 |
| ORD ID | ord-f30b3f93da32401eb09189c7cf27a7e2 |
| 出典メモ | uspto-grants-1998_12 |