3-(4-nitro-benzylideneamino)-benzo[e][1,3]thiazine-2,4-dione
3-(4-dimethylamino-benzylideneamino)-2-imino-2,3-dihydro-benzo[e][1,3]thiazin-4-one
2-Phenyl-1,2,4-triazolo<5,1-b><3,1>benzothiazin-9-one
2-imino-3-(4-nitro-benzylideneamino)-2,3-dihydro-benzo[e][1,3]thiazin-4-one