Improved Method for the Preparation of Macrocyclic Diamides
作者:Daniel T. Gryko、Dorota Gryko、Janusz Jurczak
DOI:10.1055/s-1999-2798
日期:1999.8
Novel mixed-heteroatom macrocycles via templating: a new protocol
作者:Karem J. Sabah、Rauzah Hashim
DOI:10.1016/j.tetlet.2013.01.025
日期:2013.3
A series of novel thiadiaza and triaza crownether attached galactose- and glucose-based glycolipids is synthesized, applying a new strategy. The key step is the formation of α-chloroacetamido precursors (14 and 21) from selectively protected bis(cyanomethyl)-glycolipids (13 and 19) in two steps. The cyclization reaction furnishes good yields in relatively short times in aqueous ethanol or acetonitrile