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Last Updated: April 18, 2024

Claims for Patent: 4,350,698


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Summary for Patent: 4,350,698
Title: Antiallergic imidosulfamides
Abstract:Imidosulfamide derivatives useful in the treatment of allergic conditions are prepared by reaction of an appropriately substituted tetrahydroisoquinoline and chlorosulfonylisocyanate in the presence of a non-nucleophilic organic base. Pharmaceutical compositions and methods of inhibiting the symptoms of an allergic response are also disclosed.
Inventor(s): Gleason; John G. (Delran, NJ), Hill; David T. (North Wales, PA)
Assignee: SmithKline Corporation (Philadelphia, PA)
Application Number:06/305,433
Patent Claims:1. A compound of the formula (I) ##STR5## wherein X is hydrogen, bromo, chloro, or methyl; and Y is bromo, chloro, methyl or 7-benzeneaminosulfonyl radical of the formula ##STR6## in which R.sub.1 is hydrogen, bromo, chloro or methyl and R.sub.2 is bromo or chloro; or an alkali metal salt of said compound.

2. A compound according to claim 1 wherein X is hydrogen, bromo, chloro or methyl and Y is bromo, chloro or methyl.

3. A compound according to claim 2 wherein X is hydrogen and Y is 5-bromo or 6-chloro.

4. A compound according to claim 2 wherein X is 7-chloro and Y is 6-chloro or 8-chloro.

5. A compound according to claim 2 which is N-(7,8-dichloro-1,2,3,4-tetrahydroisoquinolin-2yl)-carbonyl-7,8-dichloro-1 ,2,3,4-tetrahydrosioquinoline-2-sulfonamide or an alkali metal salt of said compound.

6. A compound according to claim 2 wherein X is 7-methyl and Y is 8-chloro.

7. A compound according to claim 1 wherein X is hydrogen and Y is a 7-benzeneaminosulfonyl radical of the formula ##STR7## which R.sub.1 is hydrogen, bromo, chloro or methyl and R.sub.2 is bromo or chloro; or an alkali metal salt of said compound.

8. A compound according to claim 7 wherein R is hydrogen and R.sub.2 is 3-chloro or 3-bromo.

9. A pharmaceutical composition for inhibiting the symptoms of asthma comprising a pharmaceutical carrier or diluent and an amount sufficient to produce said inhibition of a compound of claim 1.

10. A pharmaceutical composition according to claim 9 in a form suitable for administration by inhalation.

11. A pharmaceutical composition according to claim 9 comprising a solution or suspension of the active ingredient in sterile water.

12. A pharmaceutical composition according to claim 9 in the form of an aerosol formulation.

13. A pharmaceutical composition according to claim 9 in which the pharmaceutical carrier or diluent is a solid.

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