[Aminomethyl derivatives of (benzisothiazolin-3-one-2-yl)acetic acid amides and 2-(1,2-benzisothiazoline-3-one-2-yl)propionic acid amides].

In the search for pharmacological active new derivatives of 1,2-benzisothiazolin-3-on amides of (3-oxo-1,2-benzisothiazolin-2-yl)acetic acid and 3-(3-oxo-1,2-benzisothiazolin-2-yl)propionic acid were obtained. In the reaction of these amides with formaldehyde and various second aryl amines the title compounds are formed. Morpholinmethylamide of (3-oxo-1,2-benzisothiazolin-2-yl)acetic acid showed activity against Trichomonas vaginalis. In the reaction of ethyl esters of (3-oxo-1,2-benzisothiazolin-2-yl) acetic- and -propionic acids with hydrazine hydrate products of ring-opening of isothiazole-2,2'-dithio-bis [N- (ethoxycarbonylmethyl)benzamide] and 2,2'-dithio-bis[N-(ethoxycarbonylethyl)benzamide are formed.