Synthetic N-Alkylated Iminosugars as New Potential Immunosuppressive Agents
摘要:
The new emerging immunosuppressive effects displayed by iminosugars have not been much investigated so far. Several new N-alkyl dideoxy iminoalditols were designed and synthesized to explore their immunosuppressive effects. These iminosugars inhibited the proliferation of mouse splenocytes and the secretion of both IFN-gamma and IL-4, which are the hallmark cytokines of Th1 and Th2 cells, respectively. Some compounds exerted good inhibitory effects. More importantly, the synthetic iminosugars prolonged the allograft survival in the mouse skin transplantation experiment. Our results provide a lead for further elucidation of the structure-activity relationships and modifications of iminosugars for better immunosuppressive agents.
NOVEL MANNOPYRANOSIDE DERIVATIVES WITH ANTICANCER ACTIVITY
申请人:Montero Jean-Louis
公开号:US20120269903A1
公开(公告)日:2012-10-25
The present invention relates to mannopyranoside-derived compounds and to the use thereof as medicaments, in particular in the treatment of cancer diseases, and also to the method for preparing same and to pharmaceutical compositions comprising such compounds. Medical devices surface-treated with mannopyranoside-derived compounds according to the invention also form part of the invention.
A new synthetic access to bicyclic polyhydroxylated alkaloid analogues from pyranosides
作者:Ning Wang、Li-He Zhang、Xin-Shan Ye
DOI:10.1039/b923180c
日期:——
A facile, versatile and stereoselective synthesis of bicyclic polyhydroxylated alkaloids as castanospermineanalogues is described. The synthetic route started from methyl pyranosides. The key steps involved a high-yielding expeditious one-pot tandem reaction from alkenes to N-substituted δ-lactams. The δ-lactams were stereoselectively vinylated to give the dienes, which were followed by the ring-closing
Rational Design and Synthesis of Highly Potent Pharmacological Chaperones for Treatment of N370S Mutant Gaucher Disease
作者:Guan-Nan Wang、Gabriele Reinkensmeier、Si-Wei Zhang、Jian Zhou、Liang-Ren Zhang、Li-He Zhang、Terry D. Butters、Xin-Shan Ye
DOI:10.1021/jm801506m
日期:2009.5.28
Highly potent N-substituted delta-lactams have been rationally designed and synthesized by a concise route with a one-pot tandem reaction as key step. These iminosugars show weak inhibition of wildtype beta-glucocerebrosidase but 3- to 6-fold increases in mutant enzyme activity (N370S).