In this investigation and in continuance with our previous work in the synthesis of some heterocyclic compounds fused with pyridine moiety, we used 3-amino-4,6-diphenyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridine (<i>II</i>) as starting material to synthesize many heterocyclic compounds containing pyrazolopyridine moiety.

Some new derivatives containing both thiopyrane-2-thione (<i>I</i>) and β-lactams, thiazolidinones, triazoles, sulfonamides and tricyclic compound have been previously prepared. Here we attempted to use the compound <i>I</i>, for synthesis of new heterocycles

Some new derivatives containing both thiopyrane-2-thione (<i>I</i>) and β-lactams, thiazolidinones, triazoles, sulfonamides and tricyclic compound have been previously prepared. Here we attempted to use the compound <i>I</i>, for synthesis of new heterocycles