S-phenyl-S-pyridyl-sulfoximine 、 N,N-二乙基氯乙胺 以there is obtained, in a yield of 46% of theory, N-(2-diethylaminoethyl)-S-phenyl-S-(3-pyridyl)-sulphoximide的产率得到N-(2-diethylaminoethyl)-S-phenyl-S-(3-pyridyl)-sulphoximide
Sulphoximide derivatives of the general formula: ##STR1## wherein R.sub.1 is a phenyl, thienyl, furyl or pyridyl ring; R.sub.2 is a thienyl, furyl, or pyridyl ring; R.sub.3 and R.sub.4 are the same or are different and are alkyl groups containing up to 6 carbon atoms or together with the nitrogen atom to which they are attached form a pyrrolidine, piperidine, or morpholine ring; and n is a whole number from 1 to 5; and the pharmaceutically acceptable organic and inorganic acid addition and quaternary ammoniuim salts thereof. The compounds of the invention exhibit anti-bronchospasmolytic activity.