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Class 540/71 - Oxygen attached directly to the B ring or indirectly to the A or B ring by acyclic nonionic bonding


Subclass of Class 540 - Organic compounds -- part of the class 532-570 series
Definition: Compounds in which oxygen is either (a) attached directly
No. of patents: 7
Last issue date: 03/06/2001


NumberTitleIssue Date
619776117ଲ-2-oxo-tetrahydrofuranyl)-carbothioic acid ester, -carboxylic acid ester and -carboxylic acid amide androstane derivatives
Compounds of the androstane series are described having general formula ##STR1## and solvates thereof, in which R1 represents O, S or NH; R2 individually represents OC(.dbd.O)C1-6 alkyl; R3 individually represen...
03/06/2001
5631363Azetidinone compound and process for preparation thereof
There is disclosed an azetidinone compound of the formula [I]: ##STR1## wherein Ring B is a benzene ring which may have substituent(s), R1 is a hydroxy-substituted lower alkyl group which may have substituent(s), X is oxygen atom and the l...
05/20/1997
5442055Azetidinone compound and process for preparation thereof
There is disclosed an azetidinone compound of the formula [I]: ##STR1## wherein Ring B is a benzene ring which may have substituent(s), R1 is a hydroxy-substituted lower alkyl group which may have substituent(s), X is oxygen atom and the l...
08/15/1995
4383992Water-soluble steroid compounds
Beta-cyclodextrin forms a water-soluble complex or inclusion compound with steroid compounds having a molecular structure smaller than the interior cavity in the doughnut-shaped molecular structure of beta-cyclodextrin. The resulting inclusion compounds c...
05/17/1983
4322349Process for preparing 6-methylene steroids
A process for preparing a 6-methylene-Ɗ4 -3-keto steroid of the formula ##STR1## wherein R is hydrogen, alkoxy of up to 6 carbon atoms or acyloxy of up to 6 carbon atoms wherein the acyl group is that of a carboxylic acid, and R' is the C...
03/30/1982
4267173Use of 6ଲ-fluoro-7଱-halogenocorticoids as topical anti-inflammatories and pharmaceutical formulations useful therefor
Described is the use of 6ଲ-fluoro-7଱-halogeno-1,4-pregnadiene-17଱,21-diol-3,20-di ones and their esters as topical anti-inflammatory agents, and pharmaceutical formulations thereof useful therefor. Preferred compounds are 6ଲ,9&...
05/12/1981
42017786-Acyloxy-1,4,6-pregnatrienes, their use as anti-inflammatory agents, methods for their manufacture, and 6-oxo-1,4-pregnadiene intermediates
Novel 6-acyloxy-3,20-dioxo-1,4,6-pregnatrienes and 6-acyloxy-3,20-dioxo-4,6-pregnadienes, useful anti-inflammatory agents, are prepared by reaction of the corresponding 3,6,20-trioxo-1,4-pregnadiene or 3,6,20-trioxo-4-pregnene with an acyl halide or ...
05/06/1980
 
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