Synthesis of novel streptonigrin 2-amide derivatives with 3,3′-(phenylphosphoryl)bis(1,3-thiazolidine-2-thione)
Abstract
Novel streptonigrin 2-amide derivatives have been efficiently synthesized without protection by using 3,3′-(phenylphosphoryl)bis(1,3-thiazolidine-2-thione)(PPBTT) as a chemoselective condensing agent.