for the following products
7-Chloro-3-methyl-3,4-dihydro-2H-1,2,4-benzothiadiazine s,s-dioxide | 7-Chloro-3-methyl-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine 1,1-dioxide | IDRA 21 and 7-Chloro-3,4-dihydro-3-methyl-2H-1,2,4-benzothiadiazine 1,1-dioxide