HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
4-Toluenesulfonyl chloride → (6R)-8-Oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 4-Toluenesulfonyl chloride | HCID 7397 | — |
| Edukt | Triethylamine | HCID 8471 | — |
| Edukt | 7-Aminocephalosporanic acid | HCID 441328 | — |
| Edukt | (Z)-2-(2-Tritylaminothiazol-4-yl)-2-methoxyiminoacetic acid | HCID 2724510 | — |
| Lösungsmittel | Dichloromethane | HCID 6344 | — |
| Lösungsmittel | Dimethylacetamide | HCID 31374 | — |
| Produkt | (6R)-8-Oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid | HCID 52921562 | — |
Reaktionsschritte
The process of claim 1 comprising reacting at low temperature in dimethylacetamide, in the presence of triethylamine, tosyl chloride and the syn isomer of 2-(2-tritylamino-4-thiazolyl)-2-methoxyimino-acetic acid and reacting the resulting product with 7-amino-cephalosporanic acid in methylene chloride in the presence of triethylamine to obtain the syn isomer of 3-acetoxymethyl-7-[2-tritylamino-4-thiazolyl)-2-methoxyimino-acetamido]-ceph-3-eme-4-carboxylic acid.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05159070 |
| Quelldatensatz | uspto-grants-1992_10 |
| ORD ID | ord-c8c472ccf985436393c06c8da2cb919c |
| Quellennotiz | uspto-grants-1992_10 |