"thienyl (=thiophenyl); oxazolyl; thiazolyl; imidazolyl; 1,4-thiazinyl; triazolyl that is unsubstituted or, especially, substituted by 1-methyl-1-phenyl-ethyl or preferably by tert-butyl or especially by methyl, such as 1-, 2- or 4-(methyl or" . . . .