Synthesis of Ganglioside Mimics for Binding Studies with Myelin‐Associated Glycoprotein (MAG)*
作者:Sascha Janssen、Richard R. Schmidt
DOI:10.1080/07328300500176312
日期:2005.8
Glycosylation of 3‐O‐unprotected 2‐azido‐2‐deoxy‐galactopyranoside (compound 5) with O‐(2,3‐di‐O‐acyl‐4,6‐O‐benzylidene‐D‐galactopyranosyl) trichloroacetimidates (compounds 4A, B) as glycosyldonors afforded β (1–3)‐linked disaccharides (9A, B) in high yield. Removal of the 2,3‐O‐acyl groups and selective 3‐O‐alkylation with α‐benzyloxycarbonyl‐alkyl triflates furnished the protected target molecules
1,3,4-Trisubstituted pyrrolidine CCR5 receptor antagonists. Part 4: Synthesis of N-1 acidic functionality affording analogues with enhanced antiviral activity against HIV
作者:Christopher L Lynch、Jeffrey J Hale、Richard J Budhu、Amy L Gentry、Sander G Mills、Kevin T Chapman、Malcolm MacCoss、Lorraine Malkowitz、Martin S Springer、Sandra L Gould、Julie A DeMartino、Salvatore J Siciliano、Margaret A Cascieri、Anthony Carella、Gwen Carver、Karen Holmes、William A Schleif、Renee Danzeisen、Daria Hazuda、Joseph Kessler、Janet Lineberger、Michael Miller、Emilio A Emini
DOI:10.1016/s0960-894x(02)00606-6
日期:2002.10
A series of alpha-(pyrrolidin-1-yl)acetic acids is presented as selective and potent antivirals against HIV. Several of the pyrrolidine zwitterions demonstrated reasonable in vitro properties, enhanced antiviral activities and improved pharmacokinetic profiles over pyrrolidine 1. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of 3-alkoxyazetidin-2-ones: Dipeptide mimics
作者:Maher N Qabar、Joseph P Meara、Mark D Ferguson、Christopher Lum、Hwa-Ok Kim、Michael Kahn
DOI:10.1016/s0040-4039(98)01241-6
日期:1998.8
Several dipeptide mimics, 3-alkoxyazetidin-2-ones, were prepared in a diastereoselective fashion by the direct displacement of a scalemic triflate with 3-hydroxyazetidin-2-ones. The scope and limitation are presented. (C) 1998 Elsevier Science Ltd. All rights reserved.