関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Sodium Hydroxide | HCID 14798 | — |
| 反応物 | Sodium triacetoxyborohydride | HCID 5049666 | — |
| 反応物 | Ethyl 2-formyl-1,3-oxazole-4-carboxylate | HCID 10583255 | — |
| 反応物 | 2,2,2-trifluoro-N-((1R,2S)-2-phenylcyclopropyl)-N-(piperidin-4-ylmethyl)acetamide | HCID 86708234 | — |
| 溶媒 | 1,2-Dichloroethane | HCID 11 | — |
| 生成物 | HCID 68388416 | HCID 68388416 | 69% |
反応手順
To a solution of 2,2,2-trifluoro-N-(trans-2-phenylcyclopropyl)-N-(piperidin-4-ylmethyl)acetamide (100 mg, 0.306 mmol) in 1,2-dichloroethane (DCE) (2 mL) were added ethyl 2-formyloxazole-4-carboxylate (67.4 mg, 0.398 mmol) and sodium triacetoxyborohydride (97 mg, 0.460 mmol), and the mixture was stirred at room temperature for 18 h. The mixture was quenched with water (2 mL) and extracted with DCM (3×). The extract was dried (Na2SO4) and concentrated. The residue was dissolved in methanol (2.0 mL) and sodium hydroxide (1 mL, 1.0 mmol) was added. The mixture was stirred at room temperature for 3 h and concentrated. The residue was treated with methanol and filtered. The filtrate was purified using reverse-phase HPLC under the acidic conditions to a TFA salt of the product. The TFA salt was treated with ACN (1 mL) and 1NHCl (0.5 mL) and concentrated. The residue was dried under vacuum to give 75 mg of product (HCl salt) as off-white solid. MS: (M+H)+=356.2. 1H NMR (400 MHz, METHANOL-d4) δ ppm 1.42 (q, 1H), 1.54-1.85 (m, 3H), 2.10-2.30 (m, 3H), 2.60 (ddd, J=10.36, 6.69, 3.66 Hz, 1H), 3.04 (dt, J=7.58, 4.04 Hz, 1H), 3.72-3.86 (m, 2H), 4.69 (s, 2H), 7.11-7.44 (m, 5H), 8.60-8.78 (m, 1H).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US08853408B2 |
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| 出典データセット | uspto-grants-2014_10 |
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| ORD ID | ord-0b36e4085c2740bb9e488938edb839ce |
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| 出典メモ | uspto-grants-2014_10 |
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