Synthesis of the glucoallosamidin pseudo-disaccharide: Use of an efficient Hg(II) mediated cyclization
作者:William D. Shrader、Barbara Imperiali
DOI:10.1016/0040-4039(95)02230-9
日期:1996.1
title compound 1a was prepared from cyclopentadienylthallium in 11 steps. The key component of the pseudo-disaccharide 1a, (−)-allosamizoline 2, was synthesized in 2 steps starting from the known cyclopentene 4 by formation of the aminoimidate 5 followed by a mercury(II)trifluoroacetate mediatedcyclization and radical oxygenation. Regioselective and stereospecific coupling of 6-O-benzyl-(−)-allosamizoline8