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Ammonium Chloride → (Z)-5-[5-amino-2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ammonium Chloride | HCID 25517 | — |
| 反応物 | (Z)-5-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester | HCID 20667779 | — |
| 触媒 | Zinc | HCID 23994 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 溶媒 | Water | HCID 962 | — |
| 生成物 | (Z)-5-[5-amino-2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester | HCID 20667780 | 48% |
反応手順
Using Method L above, (Z)-5-[2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester (0.22 g, 0.57 mmol) (from Example 35 above) was reduced with zinc (0.33 g, 5.1 mmol) and ammonium chloride (67.1 mg, 1.25 mmol) in 10% water in methanol (20 mL) with heating at reflux for 4 h to give (Z)-5-[5-amino-2,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2-oxo-1H-indol-4-yl]-4-pentynoic acid methyl ester (Yield 0.1 g, 48%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06252086B1 |
| 出典データセット | uspto-grants-2001_06 |
| ORD ID | ord-a7497141d7a94c99a0004b2567ec4193 |
| 出典メモ | uspto-grants-2001_06 |