<i>De Novo</i> Asymmetric Synthesis of All-<scp>d</scp>-, All-<scp>l</scp>-, and <scp>d</scp>-/<scp>l</scp>-Oligosaccharides Using Atom-less Protecting Groups
作者:Ravula Satheesh Babu、Qian Chen、Sang-Woo Kang、Maoquan Zhou、George A. O’Doherty
DOI:10.1021/ja305321e
日期:2012.7.25
and C-O π-bond functionality, as atom-less protecting groups as well as an anomeric directing group (via a Pd-π-allyl), highlights the atom-economical aspects of the route to a divergent set of natural and unnatural oligosaccharides (i.e., various d-/l-diastereomers of oligosaccharides as well as deoxysugars which lack C-2 anomeric directing groups). For example, in only 12 steps, the construction of