Synthesis of biologically active pyridoimidazole/imidazobenzothiazole annulated polyheterocycles using cyanuric chloride in water

Abstract

An efficient and mild protocol for rapid access to N-fused polyheterocycles <italic>via</italic> Pictet–Spengler type 6-<italic>endo</italic> cyclization by cyanuric chloride in aqueous medium has been developed.