1,2,4-triazinylthiomethyl-3-cephem sulfoxides, and a procedure for their preparation
US4604387A · kind A · utility
7Cited by
1References
4Claims
0Family size
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Key dates
| Filing date | Aug 23, 1983 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | Aug 23, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cephalosporin derivatives effective against gram-negative bacteria and virtually inactive against staphylococci are disclosed. The derivatives have the following general formula: ##STR1## in which R is ##STR2## R" and R"' are hydrogen, lower alkyl or together are 1,3-propylene or 1,4-butylene, and PA0 X and X' are hydrogen, cation or easily metabolically labile and pharmaceutically acceptable ester or hemiacetal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.