Sulfamides were synthesized via the reaction of cytisine with 4;4"(5")-dibenzo-18-crown-6-disulfonyl-, 4'-sec-butyl-4'(5")-dibenzo-18-crown-6-sulfonyl-, and 4'-acetyl-4'(5')-dibetazo-18-crown-6-sulfonylchlorides. The structures of the prepared compounds were confirmed by PMR.