[EN] CONJUGATES OF TACROLIMUS, THEIR COMPOSITIONS, AND THEIR USES<br/>[FR] CONJUGUÉS DE TACROLIMUS, LEURS COMPOSITIONS ET LEURS UTILISATIONS
申请人:THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND
公开号:WO2017165607A1
公开(公告)日:2017-09-28
Some embodiments of the invention include inventive compounds (e.g., compounds of Formula (I)) including but not limited to conjugates comprising FK-506 and ascomycin. Other embodiments include compositions (e.g., pharmaceutical compositions) comprising the inventive compound. Still other embodiments of the invention include compositions for treating, for example, certain diseases using the inventive compounds. Some embodiments include methods of using the inventive compound (e.g., in compositions or in pharmaceutical compositions) for administering and treating. Further embodiments include methods for making the inventive compound. Additional embodiments of the invention are also discussed herein.
However, drug-like parameters for these ligands remained unfavorable. In the present study, we replaced the potentially labile pipecolic ester group of previous FKBP51ligands by various low molecular weight amides. This resulted in the first series of pipecolic acid amides, which had much lower molecular weights without affecting FKBP51selectivity. We discovered a geminally substituted cyclopentyl
Investigations into the synthesis of oxathiocoraline, a bicyclic depsipeptide with C2 symmetry, revealed a number of unexpected side-reactions that could not be circumvented by classical or standard means. This cyclodepsipeptide has a large number of N-methyl amino acids coexisting with two ester bonds and also shows a branched structure; these features hinder its synthesis. In addition, complexity
An Entirely Solid Phase Peptide Synthesis-Based Strategy for Synthesis of Gelatinase Biosynthesis-Activating Pheromone (GBAP) Analogue Libraries: Investigating the Structure–Activity Relationships of the <i>Enterococcus faecalis</i> Quorum Sensing Signal
作者:Dominic N. McBrayer、Brooke K. Gantman、Crissey D. Cameron、Yftah Tal-Gan
DOI:10.1021/acs.orglett.7b01444
日期:2017.6.16
The development of an entirely solid-phase peptide synthesis (SPPS)-based synthesis of the quorum sensing signal gelatinase biosynthesis-activating pheromone (GBAP) from Enterococcus faecalis is reported. The method was used to prepare three libraries of analogues to investigate the structure–activityrelationships (SARs) of the GBAP signal. The SAR studies revealed new characteristics of the GBAP
Enhanced Epimerization of Glycosylated Amino Acids During Solid-Phase Peptide Synthesis
作者:Yalong Zhang、Saddam M. Muthana、David Farnsworth、Olaf Ludek、Kristie Adams、Joseph J. Barchi、Jeffrey C. Gildersleeve
DOI:10.1021/ja212188r
日期:2012.4.11
Glycopeptides are extremely useful for basic research and clinical applications, but access to structurally defined glycopeptides is limited by the difficulties in synthesizing this class of compounds. In this study, we demonstrate that many common peptide coupling conditions used to prepare O-linked glycopeptides result in substantial amounts of epimerization at the a position. In fact, epimerization resulted in up to 80% of the non-natural epimer, indicating that it can be the major product in some reactions. Through a series of mechanistic studies, we demonstrate that the enhanced epimerization relative to nonglycosylated amino acids is due to a combination of factors, including a faster rate of epimerization, an energetic preference for the unnatural epimer over the natural epimer, and a slower overall rate of peptide coupling. In addition, we demonstrate that use of 2,4,6-trimethylpyridine (TMP) as the base in peptide couplings produces glycopeptides with high efficiency and low epimerization. The information and improved reaction conditions will facilitate the preparation of glycopeptides as therapeutic compounds and vaccine antigens.