Synthesis of the New Mannosidase Inhibitors, Diversity-Oriented 5-Substituted Swainsonine Analogues, via Stereoselective Mannich Reaction
摘要:
5alpha-Substituted swainsonine analogues were synthesized by Mannich reaction of an in situ generated (-)-swainsonine iminium ion intermediate. 5alpha-Substituted swainsonine analogues were epimerized to their 5beta-isomers in protic solvent.
Synthesis of the New Mannosidase Inhibitors, Diversity-Oriented 5-Substituted Swainsonine Analogues, via Stereoselective Mannich Reaction
作者:Tomoya Fujita、Hideko Nagasawa、Yoshihiro Uto、Toshihiro Hashimoto、Yoshinori Asakawa、Hitoshi Hori
DOI:10.1021/ol049947m
日期:2004.3.1
5alpha-Substituted swainsonine analogues were synthesized by Mannich reaction of an in situ generated (-)-swainsonine iminium ion intermediate. 5alpha-Substituted swainsonine analogues were epimerized to their 5beta-isomers in protic solvent.
Structural Investigation of the Binding of 5-Substituted Swainsonine Analogues to Golgi α-Mannosidase II
作者:Douglas A. Kuntz、Shinichi Nakayama、Kayla Shea、Hitoshi Hori、Yoshihiro Uto、Hideko Nagasawa、David. R. Rose
DOI:10.1002/cbic.200900750
日期:2010.3.22
Reaching for specificity: X‐ray crystallographic data indicates potent 5α‐substituted swainsonine analogues bind in a novel fashion to Golgi α‐mannosidase II by inserting in a water cluster and by forming new hydrophobic interactions. These offer the potential of being extended into the GlcNAc binding site to improve selectivity and reduce harmful side effects.