Explanatory notes
… organic radical of varying complexity having a carbon atom directly attached to the SO 2 group and R 2 and R 3 are … or 6-chloro-7-sulphamoylbenzo-1,2,4-thiadiazine 1,1-dioxide; 6-chloro-3,4-dihydro -7-sulphamoylbenzo-1,2,4-thiadiazine 1,1-dioxide). …