HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 7-[2-(2-Aminothiazol-4-yl)-2-(2,2,2-trifluoroethoxyimino)-acetamido]-3-chloro-3-cephem-4-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 7-[2-(2-Formamidothiazol-4-yl)-2-(2,2,2-trifluoroethoxyimino)acetamido]-3-chloro-3-cephem-4-carboxylic acid | HCID 131712487 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 7-[2-(2-Aminothiazol-4-yl)-2-(2,2,2-trifluoroethoxyimino)-acetamido]-3-chloro-3-cephem-4-carboxylic acid | HCID 131712488 | 98.2% |
Reaction Steps
7-[2-(2-Formamidothiazol-4-yl)-2-(2,2,2-trifluoroethoxyimino)acetamido]-3-chloro-3-cephem-4-carboxylic acid (syn isomer, 0.7 g.), conc. hydrochloric acid (0.43 ml.) and methanol (16 ml.) were treated in a similar manner to that of Example 21-(3) to give 7-[2-(2-aminothiazol-4-yl)-2-(2,2,2-trifluoroethoxyimino)-acetamido]-3-chloro-3-cephem-4-carboxylic acid (syn isomer, 0.65 g.)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04841062 |
| Source dataset | uspto-grants-1989_06 |
| ORD ID | ord-19435a1e25aa47c9a94e80ed6ddcff49 |
| Source note | uspto-grants-1989_06 |