American Home Products Corporation

Francis J Gregory

Peter H Wei

Harvey E Alburn

Richard L Fenichel

Novel .alpha.-phenyl-2-(aza)benzothiazolylthioglycolic acids, derivatives thereof and pharmacologically acceptable salts thereof are disclosed, as well as their use as intermediates in the preparation of 2-substituted-3-hydroxy-thiazolo[2,3-b]-benzothiazolium salts, 2-substituted-thiazolo[2,3-b]benzothiazol-3(2H)-one mesoionic didehydro derivatives, 2-substituted-thiazolo[2',3'-2,3]thiazolo[5,4-b]pyridin-3(2H)-one mesoionic didehydro derivatives and related compounds, and their use as modulators of the immune response.

.alpha.-Phenyl-2-(aza)benzothiazolylthioglycolic acids and derivatives

Novel 2-substituted-3-hydroxythiazolo[2,3-b]benzo-(and azabenzo)thiazolium salts, the mesoionic didehydro derivatives thereof and related compounds are disclosed, as well as the use thereof as modulators of the immune response.

Modulating the immune response with 2-substituted-3-hydroxythiazolo[2,3-b]b

The use of 3-aryl-thiazolo[3,2-a]benzimidazoles, 3-aryl-imidazo[2,1-b]thiazoles, and related compounds as antineoplastic agents, and/or as enhancers of the immune response is disclosed.

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Berwyn, PA, United States of America

Francis J Gregory