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Dimethylformamide → 3-[(Acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid propionyloxymethyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Dimethylformamide | HCID 6228 | — |
| 反応物 | 3-((Acetyloxy)methyl)-7-amino-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid | HCID 13729 | — |
| 反応物 | Chloromethyl propionate | HCID 221144 | — |
| 反応物 | Sodium | HCID 5360545 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | 3-[(Acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid propionyloxymethyl ester | HCID 21425995 | — |
反応手順
To 35 ml of dimethyl formamide is added 7.5 g of the sodium salt of 3-[(acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, and the solution is stirred at room temperature for about 30 minutes after which 8 ml of chloromethylpropionate is added. Stirring is continued at room temperature for about 3 hours. The mixture is diluted with ethyl acetate and washed with water. The organic layer is separated and evaporated to dryness. The residue is recrystallized from ethyl acetate to give 3-[(acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid propionyloxymethyl ester
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04031083 |
| 出典データセット | uspto-grants-1977_06 |
| ORD ID | ord-b4a0409ce0644fb9998d40eeb870d68f |
| 出典メモ | uspto-grants-1977_06 |