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Hydrochloric Acid → 9H-fluoren-9-ylmethyl-9-(phenylmethyl)-1-oxa-4,9-diazaspiro[5,5]undecane-4-carboxylate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | 9-Fluorenylmethyl chloroformate | HCID 34367 | — |
| 反応物 | Sodium Bicarbonate | HCID 516892 | — |
| 反応物 | 9-Benzyl-1-oxa-4,9-diazaspiro[5.5]undecane | HCID 35753744 | — |
| 溶媒 | Water | HCID 962 | — |
| 溶媒 | 1,4-Dioxane | HCID 31275 | — |
| 生成物 | 9H-fluoren-9-ylmethyl-9-(phenylmethyl)-1-oxa-4,9-diazaspiro[5,5]undecane-4-carboxylate | HCID 58299672 | 22.5% |
反応手順
To a solution of compound 402 (2.81 g, 11.4 mmol) in 1,4-dioxane (53 mL) was added 10% sodium bicarbonate in water (21.5 mL) followed by 9-fluorenylmethyl chloroformate (2.96 g, 11.4 mmol). The resulting mixture was stirred at room temperature for four hours, and then neutralized with 3N HCl. The solution was concentrated to a solid and then purified by flash chromatography (0-10% methanol in DCM with 1% NH4OH) to give compound 403 as a white solid (1.2 g, 22.5%). LCMS-ESI (POS), M/Z, M+1: Found 469.1, Calculated 469.2.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08841312B2 |
| 出典データセット | uspto-grants-2014_09 |
| ORD ID | ord-e4aed5e765d545368ec3d43d3eca92f9 |
| 出典メモ | uspto-grants-2014_09 |