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Triphenylphosphine → 5-tert-Butyl-2-{4-chloro-3-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-2H-pyrazol-3-ylamine
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Triphenylphosphine | HCID 11776 | — |
| 反応物 | 2-(Oxan-2-yloxy)ethan-1-ol | HCID 4166833 | — |
| 反応物 | Diethyl azodicarboxylate | HCID 5462977 | — |
| 反応物 | 5-(5-amino-3-tert-butyl-1H-pyrazol-1-yl)-2-chlorophenol | HCID 68952645 | — |
| 触媒 | Water | HCID 962 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | 5-tert-Butyl-2-{4-chloro-3-[2-(tetrahydro-pyran-2-yloxy)-ethoxy]-phenyl}-2H-pyrazol-3-ylamine | HCID 117729629 | 89% |
反応手順
To a solution of 5-(5-Amino-3-tert-butyl-pyrazol-1-yl)-2-chloro-phenol (WO2011/154734A1, which is incorporated herein by reference, 340 mg, 1.28 mmol), 2-(tetrahydro-pyran-2-yloxy)-ethanol (0.26 mL, 1.92 mmol) and Ph3P (671 mg, 2.56 mmol) in dry THF (10 mL) was added diethylazodicarboxylate (0.41 mL, 2.56 mmol) and the mixture stirred for 10 min. Water (4 drops) was added and the mixture concentrated in vacuo. The residue was purified by FCC, using 0-50% EtOAc in cyclohexane, to give the title compound (450 mg, 89%). LCMS (Method 3): Rt 3.73 min, m/z 394 [MH+].
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US09440974B2 |
| 出典データセット | uspto-grants-2016_09 |
| ORD ID | ord-ca44b3f2f7e44f3a997e860badf044e0 |
| 出典メモ | uspto-grants-2016_09 |