摘要:
Antibacterial compounds having the formula ##STR1## and the pharmaceutically acceptable salts, esters and amides thereof, preferred examples of which include those compounds whereinA is .dbd.CR.sup.6 --;R.sup.1 is cycloalkyl of from three to eight carbon atoms or substituted phenyl;R.sup.2 is selected from the group consisting of ##STR2## R.sup.3 is halogen; R.sup.4 is hydrogen, loweralkyl, a pharmaceutically acceptable cation, or a prodrug ester group;R.sup.5 is hydrogen, loweralkyl, halo(loweralkyl), or --NR.sup.13 R.sup.14 ; andR.sup.6 is halogen, loweralkyl, halo(loweralkyl), hydroxy-substituted loweralkyl, loweralkoxy(loweralkyl), loweralkoxy, or amino(loweralkyl),as well as pharmaceutical compositions containing such compounds and the use of the same in the treatment of bacterial infections.
摘要:
A process for the preparation of enantiomerically homogeneous aminopyrrolidinyl naphthyridine carboxylic acids and quinolone carboxylic acids, and for the preparation of intermediates that are useful in the production of these carboxylic acids. The compounds are useful as anti-bacterials.
摘要:
This invention relates to novel isoxazolo-naphthyridine, isoxazolo-quinoline, isothiazolo-naphthyridine, and isothiazolo-quinoline, derivatives having antibacterial properties.
摘要:
Quino-benoxazine compounds having the formula: ##STR1## wherein R.sub.2 is one or more substituents, R.sub.1 is a hydrogen or a carboxy-protecting group and Z is an amine group or an aliphatic heterocyclic group. The compounds have antibacterial activity.
摘要:
A process for the preparation of chiral 3-aminopyrrolidine and analogous bicyclic derivatives from dihydroxy olefins by treatment with titanium isopropoxide, an optically active tartrate ester and tert-butyl hydroperoxide, followed by subsequent alkylation of the intermediate with an alkyl or alkenyl magnesium halide, then pyrrolidine ring formation by condensation with an arylmethylamine, subsequent chiral replacement of a ring hydroxyl group with an amino group with further protection thereof, optional additional substitution closing of the second ring, and hydrogenolysis to remove a ring-nitrogen protecting group.
摘要:
A process for preparing a compound having the formula: ##STR1## wherein R is selected from the group consisting of C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.6 -cycloalkylmethyl, C.sub.1 -C.sub.6 -alkyl, allyl and 2-methoxyethyl, by reacting: ##STR2## under defined conditions with subsequent stepwise reactions of the respective intermediate compounds with a malonic acid diester, POCl.sub.3, and by heating the final intermediate in a high boiling solvent.
摘要:
A process for the preparation of a compound having the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are defined, from an enamine by chain expansion and ring closure followed by additional derivatization, treatment with a 3-alkoxyl-acryloyl compound, another ring closure, and converting a hydroxyl group to a leaving group.
摘要:
7-(3-A-amino-1-pyrrolidinyl) substituted naphthyridine and quinoline compounds wherein A is a solubilizing group selected from an amino acid residue or polypeptide chain.
摘要:
A process for producing a 1,4-dihydro-4-oxo-quinoline-3-carboxylic acid by reacting an acctophenone with a dialkoxycarbonate to obtain the corresponding .beta.-ketoester, treating the .beta.-ketoester with a trialkylorthoformate in the presence of an acid anhydride followed by treatment with a substituted or unsubstituted amine to obtain the corresponding enaminoketoester, and then reacting the enaminoketoester with a strong base to obtain the corresponding quinoline-3-carboxylic acid ester. The acid ester may then be hydrolyzed, if desired, to obtain the quinoline-3-carboxylic acid. Also disclosed herein are compounds useful as intermediates useful in the production of quinoline-3-carboxylic acid.