化工社化工社 化学情報印刷レポート · 研究参考用
Acetone → Acitretin
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Acetone | HCID 180 | — |
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Potassium Hydroxide | HCID 14797 | — |
| 反応物 | Etretinate | HCID 5282375 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | Acitretin | HCID 5284513 | 69% |
反応手順
Acitretin was obtained by stirring the contents of thirty 25 mg capsules of etretinate in ethyl acetate for 4 days, filtering and concentrating to dryness to give recovery of greater than 90% of the theoretical quantity of etretinate. This etretinate was then dissolved in 20 ml of ethanol, 3 ml of 4N KOH, and enough acetone to make the solution one phase. The solution was stirred at room temperature for 2 1/2 days, acidified to pH 3 with 3N HCl, and extracted with ethyl acetate. The ethyl acetate was washed with brine, dried over Na2SO4, filtered and concentrated to give a 69% yield of acitretin.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05808111 |
| 出典データセット | uspto-grants-1998_09 |
| ORD ID | ord-6c8a507b9443449389f53f71793864e1 |
| 出典メモ | uspto-grants-1998_09 |