Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1977-06-14
1978-10-10
Roberts, Elbert L.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
424239, 424240, 2603971, A61K 3156
Patent
active
041197178
ABSTRACT:
The present invention relates to a new series of fusidic acid derivatives, to salts and easily hydrolysable esters thereof, to the preparation of these compounds, and to pharmaceutical compositions containing the compounds, the new fusidic acid derivatives having the general formula: ##STR1## in which the dotted line between C-24 and C-25 indicates that the carbon atoms in question are connected by either a double bond or a single bond, and in which Q.sub.1 represents oxygen or one of the groupings ##STR2## Z being a hydroxy group, a halogen atom, an alkylsulfonyloxy or arylsulfonyloxy group, such as methanesulfonyloxy or p-toluenesulfonyloxy, an azido or a nitro group, Q.sub.2 is oxygen or the grouping ##STR3## and R.sub.1 stands for a straight or branched alkyl radical having from 1 to 6 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl or the known isomers of pentyl and hexyl, a phenyl or a heterocyclyl radical having 5 to 6 ring atoms and containing nitrogen, oxygen and/or sulfur atoms, these radicals being optionally substituted with halogen, nitro, lower alkyl or lower alkoxy radicals.
The present compounds show both in vitro and in vivo interesting antimicrobial and pharmacokinetic properties.
REFERENCES:
patent: 4004004 (1977-01-01), Von Daehne
patent: 4060606 (1977-11-01), Von Daehne et al.
Daehne Welf von
Rasmussen Poul Rodbroe
Leo Pharmaceutical Products Ltd. A/S (Lovens Kemiske / Fabrik
Roberts Elbert L.
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