Synthesis of new heterocyclic sulfamides

The synthetic approaches to novel N- and SO₂-containing bi-, tri- and tetracyclic systems, 6,8-di- and 2,4,6,8-tetraalkyl-7-oxo-3- thia-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,3-dioxides, 8,12-dioxo-9,11-dimethyl-4-thia-1,3,5,7,9,11-hexaazatricyclo[5.5.1.0^10,13]- tridecane-4,4-dioxide and 8,16-dioxo-3,5,11,13-tetramethyl-4,12-dithia-1,3,5,7,9,11,13,15-octaazatetracyclo[7.7.2.0^7,17.0^15,18]octadecane- 4,4,12,12-tetraoxide, have been developed.