Benzopyranone-.beta.-D-thioxylosides and their use in therapy
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United States of America Patent
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Dec 8, 1992
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N/A
app pub date -
Sep 10, 1990
filing date -
Sep 22, 1989
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Expired
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Abstract
The present invention relates, by way of novel industrial products which are useful in therapy, to the benzopyranone-.beta.-D-thioxyloside compounds of the formula ##STR1## in which: one of the substituents R or R' is an oxygen atom double-bonded to the corresponding cyclic carbon atom and the other is a group R.sub.1, the symbolrepresents a double bond conjugated to the CO group provided by one of the substituents R or R', X is a sulfur atom or an oxygen atom, R.sub.1 and R.sub.2, which are identical or different, are each a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a halogen atom, a trifluoromethyl group or a phenyl group, it being possible for R.sub.1 and R.sub.2, taken together, to form a 7,8,9,10-tetrahydrodibenzo[b,d]pyran-6-one group or a 1,2,3,4-tetrahydro-9H-xanthen-9-one group with the benzopyranone group to which they are bonded, and Y is the hydrogen atom or an aliphatic acyl group.
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