Approach to the pseudodisaccharides present in (oxy)apramycin. Synthesis of a 4-O-amino-octodiosyl-2-deoxystreptamine from paromamine
作者:Olivier R. Martin、Walter A. Szarek
DOI:10.1039/c39830000926
日期:——
The synthesis of an N-protected 2′-amino-2′-deoxy-1′-O-(2-deoxystreptamin-4-yl)-α-D-threo-D-gluco-octo-1′,5′:4′,8′-dipyranose in nine steps fromparomamine is described; the key steps are the conversion of paromamine into a protected octuronic acid derivative, followed by its 8′,4′-lactonization upon removal of the O-protecting groups, and partial reduction of the resulting ‘trans-decalone-like’ lactone
一个的合成ñ -保护的2'-氨基-2'-脱氧-1'- Ö - (2- deoxystreptamin -4-基)-α- d -苏式- d -葡糖-octo-1',5':描述了从帕拉明开始的9个步骤中的4',8'-双吡喃糖;关键步骤是将帕拉明胺转化为受保护的八糖醛酸衍生物,然后在去除O保护基后将其进行8',4'-内酯化,并部分还原所得的“反式-十十七烷样”内酯。