The invention relates to thiazole derivatives corresponding to the general formula: ##STR1## in which: R.sub.1 and R.sub.2 each independently represent hydrogen; a C.sub.1 -C.sub.4 alkyl group; a phenyl group or a phenyl group monosubstituted or polysubstituted by a halogen atom, a C.sub.1 -C.sub.4 alkyl group, a C.sub.1 -C.sub.4 alkoxy, nitro or hydroxyl group; or one of the groups R.sub.1 and R.sub.2 denotes hydrogen and the other represents a naphthyl group; a benzyl group; an .alpha.,.alpha.-dimethyl-benzyl group; a cyclohexyl group; a biphenyl group; a thienyl group of an adamantyl group; or alternatively R.sub.1 and R.sub.2, taken together, represent a group; ##STR2## in which the phenyl group is bonded to the 4-position of the thiazole and the group (CH.sub.2).sub.m to the 5-position, m represents an integer equal to 2 or 3 and R.sub.5 denotes hydrogen or a nitro group, R.sub.3 is H or an alkyl group and R.sub.4 is notably an alkyl substituted by an amino group, a pyrrolidino, or a pyridino group.
本发明涉及与下列通式相应的
噻唑衍
生物:##STR1## 其中:R.sub.1和R.sub.2各自独立地表示氢;C.sub.1-C.sub.4烷基;苯基或被卤原子、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、硝基或羟基单取代或多取代的苯基;或其中一个基团R.sub.1和R.sub.2表示氢,另一个表示
萘基;苯甲基;.alpha.,.alpha.-二甲基苯甲基基团;环己基;
联苯基;
噻吩基或
金刚烷基;或者R.sub.1和R.sub.2一起表示一个基团;##STR2## 其中苯基与
噻唑的4位相连,而(CH.sub.2).sub.m基团与5位相连,m表示等于2或3的整数,R.sub.5表示氢或硝基,R.sub.3为H或烷基,R.sub.4特别是被
氨基、
吡咯烷基或
吡啶基取代的烷基。