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Triethylamine → 2-[4-(4-Fluoro-benzyl)-piperidin-1-yl]-2-oxo-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-acetamide
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | 5-Amino-2-hydroxybenzimidazole | HCID 66765 | — |
| 反応物 | Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 2733084 | — |
| 反応物 | [4-(4-Fluorobenzyl)piperidin-1-yl](oxo)acetic acid | HCID 51342220 | — |
| 溶媒 | Dimethylformamide | HCID 6228 | — |
| 生成物 | 2-[4-(4-Fluoro-benzyl)-piperidin-1-yl]-2-oxo-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)-acetamide | HCID 10157570 | 48% |
反応手順
A mixture of 2.5 g (9.6 mmol) of [4-(4-fluoro-benzyl)-piperidin-1-yl]-oxo-acetic acid (Example 1b), 1.1 ml (8 mmol) of triethylamine, 1.2 g (8 mmol) of 5-amino-1,3-dihydro-benzimidazol-2-one [J. Amer. Chem. Soc., 80, 1657. (1958)] 3.03 g (8 mmol) of HBTU and 80 ml of dimethylformamide is stirred at room temperature for 24 hours. The reaction mixture is concentrated, then 100 ml of 8% sodium hydrogencarbonate solution is added. The precipitated product is filtered off and recrystallized from methanol to yield 1.51 g (48%) of the title compound. Melting Point: >260° C. (methanol)
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07435744B2 |
| 出典データセット | uspto-grants-2008_10 |
| ORD ID | ord-03dc3a33f4c34f5d862a1fdfffa3dde0 |
| 出典メモ | uspto-grants-2008_10 |