摘要:
This invention relates to novel cephem compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino substituted thiazolyl selected from the group consisting of 2-aminothiazol-4-yl, 2-aminothiazol-5-yl, 4-aminothiazol-2-yl, 2-amino-5-halothiazol-4-yl, 2-amino-4-halothiazol-5-yl, and 4-amino-5-halothiazol-2-yl,protected amino substituted thiazolyl selected from said group,lower alkylamino substituted thiazolyl,amino substituted thiadiazolyl,protected amino substituted thiadiazolyl,amino substituted pyridyl,protected amino substituted pyridyl,furyl,thiazolyl,thiadiazolyl,phenyl, ornaphthyl,R.sup.2 is carboxy(lower)alkyl or protected carboxy(lower)alkyl,R.sup.3 is lower alkylthio, andR.sup.4 is carboxy or protected carboxy, and pharmaceutically acceptable salts thereof.
摘要:
Compounds of the formula ##STR1## wherein r.sup.1 is amino or protected amino R.sup.2 is cycloalkenyl X is halogen and Y is carboxy or protected carboxy, or salts useful as intermediates for cephalosporin antibiotics.
摘要:
A compound of the formula: ##STR1## wherein R.sup.2 is halo(lower)alkyl, andR.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.
摘要:
The invention relates to pyrimidine derivatives and their pharmaceutically acceptable salts which are useful in the treatment of cerebrovascular diseases, to processes for preparation thereof and to the composition containing the same, said pyrimidine derivatives being represented by the following formula: ##STR1## wherein Ar, R.sup.1, R.sup.2 and R.sup.3 are as defined in the disclosure.
摘要:
3,7-disubstituted-3-cephem-4-carboxylic acid compounds having bacteriostatic properties and the following formula: ##STR1## in which R.sup.1 is thiadiazolyl or isothiazolyl, each of which may have suitable substituent(s), or thiazolyl; R.sup.2 is hydrogen or lower alkyl; R.sup.3 is carboxy or protected carboxy; R.sup.4 is hydrogen, acyloxy or a heterocyclicthio group which may have suitable substituent(s); and R.sup.5 is hydrogen or lower alkoxy, process for making same and treating infectious diseases therewith.
摘要:
The invention relates particularly to syn compounds of the formula ##STR1## wherein R.sup.2 is C.sub.1 -C.sub.8 alkyl, R.sup.5 is carboxy or pharmaceutically acceptable esterified carboxy and R.sup.6 is amino or protected amino, and pharmaceutically acceptable salt thereof, processes for making them, pharmaceutical compositions containing them and their use in treating infectious diseases.
摘要:
The invention relates to new cephem compounds, of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino or protected amino,R.sup.2 is carboxy(lower)alkyl or protected carboxy(lower)alkyl,R.sup.3 is halogen or lower alkoxy, andR.sup.4 is carboxy or protected carboxy,and a pharmaceutically acceptable salt thereof.
摘要:
The invention relates particularly to syn compounds of the formula: ##STR1## wherein R.sup.1 is thiadiazolyl,R.sup.2 is hydrogen or an aliphatic hydrocarbon residue which may be substituted with halogen, carboxy or esterified carboxy andR.sup.5 is carboxy or functionally modified carboxy, and pharmaceutically acceptable salt thereof, processes for making them, pharmaceutical compositions containing them and their use in treating infectious diseases.
摘要:
The invention relates to new cephem compounds of high antimicrobial activity, the new cephem compounds comprising aminothiazole cycloalkenyloxyimino acetamido cephem derivatives.
摘要:
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.