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Potassium Cyanide → methyl (S)-11,12,13,13a-tetrahydro-9-oxo-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Potassium Cyanide | HCID 9032 | — |
| 反応物 | Ethyl (7S)-12-oxo-2,4,11-triazatetracyclo[11.4.0.02,6.07,11]heptadeca-1(17),3,5,13,15-pentaene-5-carboxylate | HCID 10041121 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 生成物 | methyl (S)-11,12,13,13a-tetrahydro-9-oxo-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylate | HCID 54213103 | — |
反応手順
A mixture of 311 mg (1 mmol) of ethyl (S)-11,12,13,13a-tetrahydro-9-oxo-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylate, 66 mg of potassium cyanide and 10 ml of absolute methanol is heated to boiling under reflux for 6 hours. The mixture is concentrated, a small amount of water is added, the mixture is extracted three times with 10 ml of chloroform each time, dried over magnesium sulphate, evaporated and recrystallised from ethyl acetate/hexane. There is obtained methyl (S)-11,12,13,13a-tetrahydro-9-oxo-9H-imidazo[1,5-a]pyrrolo[2,1-c][1,4]benzodiazepine-1-carboxylate of melting point 165°-167° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04346032 |
| 出典データセット | uspto-grants-1982_08 |
| ORD ID | ord-e3577f389a634323b49fc64ef7e7bdf3 |
| 出典メモ | uspto-grants-1982_08 |