Indenothiazole derivative and process for preparing the same

Abstract From the Canadian patent

The invention relates to a novel indenothiazole derivative having the formula: (Ia), wherein X and Y are identical with or different from, each other and are each hydrogen halogen, lower alkyl, having 1-6 carbon atoms or lower alkoxyl having 1-6 carbon atoms; n is an integer of from 0 to 4 Rl is, hydrogen, lower alkyl having 1-6 carbon atoms or phenyl; R2 is lower alkyl having 1-6 carbon atoms cyclohexyl, lower alkoxyl having 1-6 carbon atoms alkenyl having 3-6 carbon atoms, phenyl m-(l-piperi-, dinylmethyl)-phenoxy, phenyl substituted by a halogen atom, hydroxyl, lower alkyl having 1-6 carbon atoms lower alkoxyl group having 1-6 carbon atoms or trifluoromethyl group, an heterocyclic ring …