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US 4,906,658 AGranted
Fluoro-sulfones
AssigneeMerck Frosst Canada, Inc.
InventorsHaydn W. R. Williams, Robert N. Young
Life of this patent
Estimating the term…
Abstract
Compounds of Formula I ##STR1## the pharmaceutically acceptable salts, and the gamma-lactone form thereof are described. They are antagonists of leukotrienes and SRS-A.
Claims6
A compound of the formula:
- ##STR5## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl R.sup.2 is H or C.sub.1 -C.sub.6 alkyl and
- R.sup.3 is H or C.sub.1 -C.sub.6 alkyl and the pharmaceutically acceptable salts and .gamma. lactone form thereof.
Dependencies are inferred from the claim text.