| abstract |
"5-(4-PYRIDYL)-6-(4-FLUOROPHENYL)-2,3-DIHYDROIMIDAZO-[2,1-b]THIAZOLE" ABSTRACT OF THE DISCLOSURE 5-(4-Pyridyl)-6-(4-fluorophenyl)-2,3-dihydroimidazo-[2,1-b]thiazole has significant antiarthritic and immuno-regulatory activity compared with its 5,6-transposed isomer. The compound is prepared by reacting 4-(4-pyridyl)-5-(4-fluoro-phenyl)-2-mercaptoimidazole with a reactive ethylene dihalide then separating the isomeric mixture of products. |