
{"publication_number": "US-4200578-A", "abstract": "compounds of the formula ## str1 ## wherein r 1 is a straight or branched chain alkynyl group containing from 3 to 9 carbon atoms , inclusive ; r 2 and r 3 each are independently hydrogen , alkyl , guanidino or -- p nr 4 r 5 ; r 4 and r 5 each are independently hydrogen , alkyl or phenyl ; n is 2 or 3 ; p is 1 , 2 or 3 ; x is nr 6 or chr 6 ; r 6 is cyano , nitro , so 2 ar or so 2 alkyl ; and ar is phenyl or phenyl containing 1 or 2 substituents selected from halogen and alkyl ; and nontoxic , pharmaceutically acceptable salts thereof , are potent anti - ulcer agents .", "application_number": "US-97051778-A", "description": "a mixture of 1 - nitro - 2 - methylthio - 2 -{ 2 -[( thiazol - 2 - yl ) methylthio ] ethylamino 