摘要:
Novel cephalosporins of the formula ##STR1## in which R.sup.1 represents hydrogen or an amino-protecting groupandR.sup.2 represents alkyl, cycloalkyl or alkenyl.
摘要:
Antibacterially active new 1,8-bridged 4-quinolone-3-carboxylic acid derivatives of the formula ##STR1## in which Y is carboxyl or a derivative thereofR.sup.1, R.sup.2, R.sup.3, R.sup.4, X.sup.1, X.sup.2 and X.sup.5 are H or various radicals,Z is O, NH, substituted NH, ##STR2## or ##STR3## m and n are 0 or 1, and A, B, D and E are CH or substituted C or up to three of them are N,and physiologically acceptable salts thereof. Novel intermediates are described as well as processes for making the intermediates and end products.
摘要:
Antibacterially active new 1,8-bridged 4-quinolone-3-carboxylic acid derivatives of the formula ##STR1## in which Y is carboxyl or a derivative thereofR.sup.1, R.sup.2, R.sup.3, R.sup.4, X.sup.1, X.sup.2 and X.sup.5 are H or various radicals,Z is O, NH, substituted NH, ##STR2## m and n are 0 or 1, andA, B, D, and E are CH or substituted C or up to three of them are N,and physiologically acceptable salts thereof. Novel intermediates are described as well as processes for making the intermediates and end products.
摘要:
New 6,7-disubstituted-1-cyclopropyl-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxy lic acids of the formula (I) ##STR1## in which X represents halogen or nitro and A represents ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined hereinbelow are disclosed as well as their usefulness as antibacterial agents.
摘要:
Antibacterially effective 1,7-diamino-1,4-dihydro-4-oxo-3-(aza)quinolinecarboxylic acids of the formula ##STR1## in which A is nitrogen or C--R.sup.1,R.sup.1 is nitro or halogen,R.sup.2 and R.sup.3 each independently is C.sub.1 -C.sub.3 -alkyl, or together with the nitrogen atom to which they are bonded, form a 5-membered or 6-membered heterocyclic ring, which can additionally contain the atoms or groups --O--, --S--, --SO--, --SO.sub.2 -- or .dbd.N--R.sup.4 as a ring member and can optionally be mono-, di- or tri-substituted on the carbon atoms by C.sub.1 -C.sub.3 -alkyl, hydroxyl, alkoxy with 1-3 carbon atoms, amino, methylamino or ethylamino, it being possible for a carbon atom in each case to carry only one substituent,R.sup.4 is hydrogen, an alkyl or alkenyl group which has 1 to 4 carbon atoms and is optionally substituted by a hydroxyl, alkoxy, alkylmercapto, alkylamino or dialkylamino group with 1 to 3 carbon atoms per alkyl radical, the cyano group or an alkoxycarbonyl group with 1 to 4 carbon atoms in the alcohol part, or a benzyloxycarbonyl group.
摘要:
Antibacterially active and animal growth-regulating novel .beta.-lactam compounds of the formula ##STR1## in which R.sup.1 represents an optionally substituted radical of the formula ##STR2## Z represents oxygen, sulphur or --N--R.sup.13, and A represents the group ##STR3##
摘要:
Antibacterially active new 1,8-bridged 4-quinolone-3-carboxylic acid derivatives of the formula ##STR1## in which Y is carboxyl or a derivative thereofR.sup.1, R.sup.2, R.sup.3, R.sup.4, X.sup.1, X.sup.2 and X.sup.5 are H or various radicals,Z is O, NH, substituted NH, --CON
摘要:
New antibiotics of the formula ##STR1## in which X is O or N--CO--NH.sub.2,R is the radical of an aminoacid other than serine, an oligopeptide other than HyoHyoHyoSer or a derivative thereof on the free amino group, or a radical from the group comprising HyoSer, HyoHyoSer, HyoHyoHyoAla, HyoHyoHyoThr, Hyo, HyoHyo or HyoHyoHyo, andHyo is N.sup.5 -acetyl-N.sup.5 -hydroxy-L-ornithine.The intermediate wherein R is H is also new as is the tripeptide ##STR2##