The invention relates particularly to syn compounds of the formula: ##STR1## wherein R.sup.2 is hydrogen or an aliphatic hydrocarbon which may be substituted with halogen, carboxy or pharmaceutically acceptable esterified carboxy, R.sup.5 is carboxy or pharmaceutically acceptable esterified carboxy, R.sup.6 is amino or protected amino and R.sup.7 is lower alkanesulfonyl or arenesulfonyl and pharmaceutically acceptable salt thereof, processes for making them, pharmaceutical compositions containing them and their use in treating infectious diseases.
The invention relates to new thiadiazolyl or thiazolyl-substituted cephem and cepham compounds, the pharmaceutically acceptable salts and bioprecursors thereof, of antimicrobial activity, processes for preparation thereof, intermediates for preparing the new compounds and to pharmaceutical compositions comprising the new compounds, and methods of using the compositions for treatment of infectious diseases.
New cephem and cepham compounds and processes for preparation thereof
申请人:Fujisawa Pharmaceutical Company, Limited
公开号:US04841062A1
公开(公告)日:1989-06-20
Compounds of the formula: ##STR1## wherein R.sup.2 is cyclo(lower)alkyl or lower alkynyl having 2 to 6 carbon atoms, and R.sup.6 is amino or protected amino, or the reactive derivative at the carboxy group, are disclosed as intermediates for the preparation of cephem and cepham compounds having antimicrobial activity.
New cepham compounds and processes for the production thereof
申请人:Fujisawa Pharmaceutical Company, Limited
公开号:US04822888A1
公开(公告)日:1989-04-18
A compound of the formula: ##STR1## wherein R.sup.2 is halo(lower)alkyl, and R.sup.6 is amino or protected amino, its reactive derivative at the carboxy group or its lower alkyl ester, is disclosed, having utility as an intermediate for producing cephems or cephams.
7-substituted 3-cephem or cepham compounds characterized by the grouping, in the 7-position thereof, of the formula: R'--A--CONH-- where R' is thiadiazolyl or amino thiazolyl, and A is methylene carrying oxyiimino, or R' is haloacetyl and A may also be methylene, their preparation, and pharmaceutical uses.