HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 7-[2-(2-aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid hydrochloride
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 7-[2-(2-formamidothiazol-4-yl)-2-(2-formyloxyethoxyimino)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid | HCID 131715303 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 7-[2-(2-aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid hydrochloride | HCID 131715304 | 97.7% |
Reaction Steps
A solution of 7-[2-(2-formamidothiazol-4-yl)-2-(2-formyloxyethoxyimino)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (syn isomer, 5.0 g.) and conc. hydrochloric acid (3.34 g.) in methanol (35 ml.) and tetrahydrofuran (5 ml.) was treated in a similar manner to that of Example 2-(2) to give 7-[2-(2-aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid hydrochloride (syn isomer, 4.73 g.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04698337 |
| Source dataset | uspto-grants-1987_10 |
| ORD ID | ord-c5caf33158904b59ae5aec10c6f5451c |
| Source note | uspto-grants-1987_10 |