摘要:
The present invention provides a compound of formula I, pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof.
摘要:
The present invention is directed to a method of treating hepatitis B viral infections in mammals comprising the administration of .beta.-L-5-fluoro-2',3'-dideoxycytidine and pharmaceutically acceptable derivatives thereof.
摘要:
There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification The bicyclic heteroaryl carboxaldehydes are useful as intermediates in the preparation of β-lactamase inhibitors.
摘要:
The present invention provides a β-lactam antibiotic such as cefepime and a compound of formula I, pharmaceutical compositions and the use thereof for the treatment of bacterial infection or disease in a patient in need thereof.
摘要:
The invention is a process improvement for producing the carbapenem antibacterial agent (4R, 5S, 6S)-3-[[2R,3R)-2-[[[(S)-2-amino-3-methyl-1-oxobutyl]amino]methyl]tetrahydro-3-furanyl]thio]-6-[R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid by hydrogenation of 4-nitrobenzyl (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-{[2R,3R)-2-({[(2S)-3-methyl-2-({[4-nitrobenzyl)oxy]carbonyl}amino)butanoyl]amino}methyl)-tetrahydrofuran-3-yl]thio}-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate in a biphasic solvent mixture comprising a water portion and an organic solvent portion, not containing an acid acceptor. The water portion is separated from the organic solvent portion and (4R,5S,6S)-3-[[(2R,3R)-2-[[[(S)-2-amino-3-methyl-1-oxobutyl]amino]methyl]tetrahydro-3-furanyl]thio]-6-[R-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid is isolated from the separated water portion by lyophilization or reverse osmosis.
摘要:
This invention provides compounds of Formula I having the structure where R1, R2, R3 and A are defined in the specification or a pharmaceutically acceptable salt thereof useful as antibacterial agents. Compounds according to Formula (II): where Q, R4, R5, R6 and R10 and A are defined in the specification are useful as chemical intermediates.
摘要:
This invention relates to certain tricyclic 6-alkylidene penems which act as a inhibitor of class-D enzymes. β-Lactamases hydrolyze β-lactam antibiotics, and as such serve as the primary cause of bacterial resistance. The compounds of the present invention when combined with β-lactam antibiotics will provide an effective treatment against life threatening bacterial infections. In accordance with the present invention there are provided compounds of formula I which are useful for treatment of bacterial infections having class-D enzymes associated therewith: wherein: One of A and B denotes hydrogen and the other an optionally substituted fused tricyclic heteroaryl group; and X is S or O.