Bridge heat nitrogen compounds: synthesis and biological activity of some novel oxadiazolo triazolothiadiazino and triazolothiadiazolo thienopyrimidine derivatives

ABSTRACT

Some novel s-triazolo [3, 4-b] 1,3,4,-thidiazines 2a-d were synthesized via the reaction between compounds 1e-h and hydrazine hydrate. Also, s-triazolo [3, 4-b] 1, 3,4-thiadiazoles 4b, c were prepared by reaction of 3 with aryl acid chlorides. The new compounds were characterized by elemental analysis, ir and 1Hnmr spectral data