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US 5,399,558 AGranted
Isoflavonoid antibacterial compounds, compositions and use
AssigneePathoGenesis Corporation
InventorsWilliam R. Baker, Lester A. Mitscher
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AssigneePathoGenesis Corporation
InventorsWilliam R. Baker, Lester A. Mitscher
Estimating the term…
Methods, compounds and compositions are provided for inhibiting the growth of mycobacteria and gram-positive organisms in vitro and of treatment of mycobacterial and gram-positive infections in vivo using compounds of the formula (I) or (II): ##STR1## wherein R.sub.1 is hydrogen, halogen, amino or loweralkyl; and R.sub.2 is selected from the group consisting of --CONR.sub.4 R.sub.5, --(CH.sub.2).sub.n- NR.sub.4 R.sub.5, --NHCO--NR.sub.4 R.sub.5 and --NHCO.sub.2 R.sub.4, wherein R.sub.4 and R.sub.5 are selected from hydrogen, loweralkyl, alkoxy, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl, arylalkylaryl, arylaryl, aryoxy, aryloxyaryl, aryloxyarylalkyl, arylalkoxy, arylalkoxyaryl, arylalkoxyarylalkyl, arylalkoxyaryl, alkenyl, alkynyl and heterocycle, or R.sub.4 and R.sub.5 are connected to form a ring and produce cycloalkyl or heterocycle; and n is 0, 1, 2, or 3; or a pharmaceutically acceptable salt thereof processes for the preparation of the compounds of the invention in addition to intermediates useful in these processes, a pharmaceutical composition, and a method of treating disorders resulting from mycobacterial or MRSA infections. The methods, compounds and compositions are particularly useful for inhibiting the growth of Mycobacterium tuberculosis, and may be used alone, or in combination with other anti-Mycobacterium tuberculosis agents, such as isoniazid, rifampin, pyrazinamide, rifabutin, streptomycin and ciprofioxacin, to provide new agents for the treatment of tuberculosis, including multidrug-resistant tuberculosis (MDRTB).
A compound of formula (I) or (II):
A method of inhibiting the growth of gram-positive organisms comprising contacting the gram-positive organisms with a growth inhibitory amount of a compound of formula (I) or (II):
A method of treating a human or animal subject suffering from a pathogenic infection by a gram-positive organism in need of such treatment comprising administering to the subject a therapeutically effective amount of a compound of formula (I) or (II):
Dependencies are inferred from the claim text.