1,2,5-thiadiazol-3,4-diamines
 This invention relates to Mannich-alkynyl aminothiadiazole oxides having histamine H.sub.2 -antagonist activity. A particular compound of this invention is 3-amino-4-[7-piperidinohept-5-ynylamino]-1,2,5-thiadiazole-1-oxide. 
SmithKline & French Laboratories Limited
C A C
C07D A61P C07D
inventional inventional inventional
Peter Thomas H.
Blurton Brown