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Lithium Hydroxide → 6-(4-Carboxy-1H-benzoimidazol-2-ylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Lithium Hydroxide | HCID 3939 | — |
| 反応物 | Tetrahydrofuran | HCID 8028 | — |
| 反応物 | 6-(4-Methoxycarbonyl-1H-benzoimidazol-2-ylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester | HCID 58724461 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 生成物 | 6-(4-Carboxy-1H-benzoimidazol-2-ylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester | HCID 66940378 | 72.4% |
反応手順
109 mg (0.242 mmol) of 6-(4-methoxycarbonyl-1H-benzoimidazol-2-ylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester was hydrolyzed using 1 mL of 2 N aq. LiOH, 4 mL of THF and 1 mL of methanol stirring at room temperature for one day as described in general procedure B. 76.5 mg (72%) of the 6-(4-Carboxy-1H-benzoimidazol-2-ylcarbamoyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid tert-butyl ester product was obtained. LCMS: 437 (M+1)+.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08598353B2 |
| 出典データセット | uspto-grants-2013_12 |
| ORD ID | ord-574fc34aed424eef85a7de86332ab4af |
| 出典メモ | uspto-grants-2013_12 |