A Facile and Efficient Route for the Synthesis of Thiopyranoquinolines-Fused Indole Moiety Using 2- Chloroquinoline-3-carbaldehydes

摘要

The reaction of 2-chloroquinoline-3-carbaldehydes with indo- line-2-thione in ethanol provides a series of novel indolo [3',2':5,6]thiopyrano[2,3-b]quinoline derivatives. The desired products were obtained in short reaction time and high yields (69-93%) under mild reaction conditions.