摘要:
Novel cephalosporins of the formula ##STR1## in which R.sup.1 is an aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms which is optionally substituted by a carboxyl group, ##STR2## R.sup.2 and R.sup.3 each independently is an optionally substituted aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms, but is not unsubstituted methyl,or pharmaceutically acceptable salts thereof, are effective antibacterially and promote the growth of animals.
摘要:
Novel antibacterially active cephalosporins of the formula ##STR1## in which R.sup.1 denotes hydrogen, optionally substituted alkyl, a substituted or unsubstituted phenyl ring, a polycyclic aromatic ring or an optionally substituted heterocyclic 5- or 6-member ring having 1-4 heteroatoms,R.sup.2 represents hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkenyl, halogen, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, hydroxymethyl, formyloxymethyl, C.sub.1 -C.sub.4 -alkylcarbonyloxymethyl, aminocarbonyloxymethyl, pyridiniummethyl, 4-carbamoylpyridiniummethyl, 4-sulphonylethylpyridiniummethyl, 4-carboxylmethylpyridiniummethyl or heterocyclylthiomethyl, heterocyclyl representing a radical of the formula ##STR2## wherein R.sup.8 denotes hydrogen, methyl, 2-dimethylaminoethyl, carboxymethyl, sulphomethyl, carboxyethyl or sulphoethyl andR.sup.9 denotes hydrogen or methyl,or pharmaceutically tolerated salts or esters thereof.
摘要:
Antibacterially effective cephalosporins of the formula ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.6 -alkyl, phenyl or halogen-substituted phenyl andA represents a nitrogen-containing, positively charged heterocyclic 5-membered to 7-membered ring which is bonded via N and can contain a total of up to 4 hetero-atoms from the group comprising N, O and S, and onto which up to two further rings can be fused, and which can optionally be substituted, with the proviso that, if the ring is a 6-membered ring, A does not represent an unsubstituted pyridine ring or a pyridine ring which is mono- or di-substituted by identical or different substituents from the group comprising C.sub.1 -C.sub.4 -alkyl, chlorine, bromine, carbamoyl or N--C.sub.1 -C.sub.4 -alkylcarbamoyl,or pharmaceutically acceptable salts thereof or esters thereof which can be split under physiological conditions.
摘要:
Novel .beta.-lactam antibiotics of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3, which may be identical or different, denote a substituted or unsubstituted alkyl radical or a monocyclic or bicyclic, optionally substituted, carbocyclic or heterocyclic ring, orR.sup.1 represents an optionally substituted alkyl radical or a monocyclic or bicyclic, substituted or unsubstituted, carbocyclic or heterocyclic ring, andR.sup.2 and R.sup.3, together with the N.sup..sym. atom, form an optionally substituted monocyclic or polycyclic ring which can be saturated or unsaturated and can contain oxygen, sulphur and nitrogen as other hetero atoms, orR.sup.1, R.sup.2 and R.sup.3, together with the N.sup..sym. atom, form a bridged, optionally substituted polycyclic ring which can be saturated or unsaturated and can contain oxygen, sulphur and nitrogen as other hetero atoms, andR.sup.4 represents hydrogen or optionally substituted alkyl, aryl or heterocyclyl or hydroxycarbonyl, lower alkoxycarbonyl, halogen, pseudohalogen or a group of the formula ##STR2## in which n denotes 0, 1 or 2, andB represents a direct bond, oxygen or a group ##STR3## and A and W, independently of one another, represent hydrogen or optionally substituted alkyl, aryl or heterocyclyl, or together form an optionally substituted carbocyclic or heterocyclic ring.
摘要:
Novel cephalosporins of the formula ##STR1## in which R.sup.1 is an aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms which is optionally substituted by a carboxyl group, ##STR2## R.sup.2 and R.sup.3 each independently is an optionally substituted aliphatic or cycloaliphatic hydrocarbyl radical of up to 6 carbon atoms, but is not unsubstituted methyl,or pharmaceutically acceptable salts thereof, are effective antibacterially and promote the growth of animals.
摘要:
Antibacterially active novel cephalosporins of the formula ##STR1## in which R.sup.1 represents alkyl, alkenyl, alkoxy, alkylthio, halogen, trifluoromethyl or trifluoromethoxy,R.sup.2 represents hydrogen or an organic radical,R.sup.3 represents hydrogen, alkyl, alkenyl, alkoxy, alkylthio, halogen, hydroxymethyl or ethers or esters thereof, or various organothiomethyl or substituted aminomethyl radicals, andR.sup.4 represents COO.sup.- or COOH, or salts thereof.
摘要:
Antibacterially effective cephalosporins of the formula ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.6 -alkyl, phenyl or halogen-substituted phenyl andA represents a nitrogen-containing, positively charged heterocyclic 5-membered to 7-membered ring which is bonded via N and can contain a total of up to 4 hetero-atoms from the group comprising N, O and S, and onto which up to two further rings can be fused, and which can optionally be substituted, with the proviso that, if the ring is a 6-membered ring, A does not represent an unsubstituted pyridine ring or a pyridine ring which is mono- or di-substituted by identical or different substituents from the group comprising C.sub.1 -C.sub.4 -alkyl, chlorine, bromine, carbamoyl or N-C.sub.1 -C.sub.4 -alkylcarbamoyl, or pharmaceutically acceptable salts thereof or esters thereof which can be split under physiological conditions.
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:
Antibiotically active penicillins and cephalosporins of the formula ##STR1## in which Z is hydrogen or lower alkoxy,n is 1 or 2,Y, in the form of the free acid, is ##STR2## X is --S--, --n--, --SO-- or --SO.sub.2 --, T is an organic radical, hydrogen or halogen,A is hydroxyl, optionally substituted alkyl, a substituted or unsubstituted phenyl ring, an optionally substituted polycyclic aromatic ring, an optionally substituted 5-membered or 6-membered heterocyclic ring with nitrogen, oxygen and/or sulphur as hetero atoms in the ring, or an optionally substituted polycyclic heterocyclic ring,or non-toxic pharmaceutically tolerated salts thereof.
摘要:
Antibacterially active cephalosporins of the formula ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.6 -alkyl, phenyl or halogen-substituted phenyl, andR.sup.2 and R.sup.3, which can be identical or different, denote H, C.sub.1 -C.sub.4 -alkyl, chlorine, bromine, carbamoyl or N-C.sub.1 -C.sub.4 -alkylcarbamoyl.