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HRID 569436作成日：2026年10月25日
Sodium Acetate → Benzhydryl 7-[2-benzyloxycarbonylmethoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-vinyl-3-cephem-4-carboxylate
https://huagongshe.com/reaction/569436
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Sodium Acetate | HCID 517045 | — |
| 反応物 | Thiourea | HCID 2723790 | — |
| 反応物 | Benzhydryl 7-(2-benzyloxycarbonylmethoxyimino-4-bromo-3-oxobutyramido)-3-vinyl-3-cephem-4-carboxylate | HCID 131713331 | — |
| 溶媒 | Water | HCID 962 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | Benzhydryl 7-[2-benzyloxycarbonylmethoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-vinyl-3-cephem-4-carboxylate | HCID 131713345 | 82.6% |
反応手順
To a solution of benzhydryl 7-(2-benzyloxycarbonylmethoxyimino-4-bromo-3-oxobutyramido)-3-vinyl-3-cephem-4-carboxylate (2.5 g) in tetrahydrofuran (25 ml) was added a solution of thiourea (0.78 g) and sodium acetate (0.34 g) in water (10 ml), followed by stirring at 35° C. for 4 hours. The reaction mixture was extracted with ethyl acetate, and the extract was washed with a saturated aqueous sodium chloride and dried over magnesium sulfate. Removal of the solvent gave benzhydryl 7-[2-benzyloxycarbonylmethoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-vinyl-3-cephem-4-carboxylate (syn isomer) (2.0 g).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US04731443 |
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| 出典データセット | uspto-grants-1988_03 |
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| ORD ID | ord-960f1cd0ca8f46718f1551b3597298df |
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| 出典メモ | uspto-grants-1988_03 |
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