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1-Hydroxybenzotriazole → (2S,5R)-6-(Benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 1-Hydroxybenzotriazole | HCID 75771 | — |
| 反応物 | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| 反応物 | O-cyclohexylhydroxylamine | HCID 10820741 | — |
| 反応物 | (2S,5R)-6-(Benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid | HCID 57389355 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | (2S,5R)-6-(Benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide | HCID 86693929 | 89.5% |
反応手順
To a solution of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.2 g, 0.72 mmol) in dry DCM (20 mL) were added (aminooxy)cyclohexane 21 (0.1 g, 0.86 mmol, US 2008/146625 A1), 1-hydroxybenzotriazole (0.14 g, 1.1 mmol) and 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.2 g, 1.1 mmol) at room temperature. The reaction mixture was stirred at room temperature overnight, and then concentrated under vacuum. The residue was purified by column chromatography to give (2S,5R)-6-(benzyloxy)-N-(cyclohexyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide 22 (0.24 g, 89.5%) as a clear thick oil.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US09393239B2 |
| 出典データセット | uspto-grants-2016_07 |
| ORD ID | ord-7bdb3b14f93f4bc6b206235d10fd7811 |
| 出典メモ | uspto-grants-2016_07 |