Stereoselective One-Pot Synthesis of Constrained N,O-Orthogonally Protected <i>C</i>-Glycosyl Norstatines [C(1‘)-Aminoglycosyl-1,3-dioxolan-4-ones]
作者:Andrea Guerrini、Greta Varchi、Arturo Battaglia
DOI:10.1021/jo0608164
日期:2006.9.1
usually with high diastereomeric excesses. Both the sulfinyl group at the nitrogen atom and the acetal moiety of the dioxolanone ring were selectively removed, thus demonstrating the orthogonality of the two protecting groups. In fact, the MeO- induced methanolysis of the acetal group gave the corresponding methyl C-glycosyl-sulfinylamino-isoserinates, while the acid induced removal of the sulfinyl group