2‐[2‐(N, N‐Disubstituted thiocarbamoyl‐sulfanyl)acylamino ]thiazol‐4‐yl}acetic acid ethyl esters (3a—x) were synthesized by the reaction of potassium salts of N, N‐disubstituted dithiocarbamoic acids with [2‐(2‐chloroalkanoyl)amino‐thiazol‐4‐yl]acetic acid ethyl esters. The structures of the synthesized compounds were confirmed by elemental analyses, UV, IR, 1H‐NMR, and EI mass spectral data. The
5‐chloro‐3‐methyl‐6‐(2‐bromopropionyl)‐2‐benzoxazolinone and substituted potasium dithiocarbamate derivatives. Their structures have been elucidated by UV‐, IR‐, and NMR‐spectra and by elemantary analysis. The title compounds have been assayed for their antispasmodic activity on guineapig ileum, they possess spezific anticholinergic properties.