1-methyl-2,2,4-trioxo-1,2,3,4-tetrahydro-2λ6-benzo[c][1,2]thiazine-3-carboxylic acid 2-methoxy-anilide
1-methyl-2,2,4-trioxo-1,2,3,4-tetrahydro-2λ6-benzo[c][1,2]thiazine-3-carboxylic acid 4-nitro-anilide
1-methyl-2,2,4-trioxo-1,2,3,4-tetrahydro-2λ6-benzo[c][1,2]thiazine-3-carboxylic acid 4-bromo-anilide