Dioxoanthracene sulphonate derivatives
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United States of America Patent
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Jun 17, 2014
Grant Date -
Mar 3, 2011
app pub date -
Nov 14, 2008
filing date -
Nov 16, 2007
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Abstract
Compounds that may have anti-inflammatory activity have the general formula (I): Wherein R1, R2, R3 are each independently H or a C1-4 alkyl group or a C2-4 acyl group; R4 and R5 are each independently H or a group of formula —SO3R6, wherein R6 is H or a C1-4 alkyl group or a C2-4 acyl group; with the proviso that at least one of R4 and R5 is a group of formula —SO3R6, or a pharmaceutically acceptable salt thereof.
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