[EN] CXCR3 RECEPTOR AGONISTS<br/>[FR] AGONISTES DU RÉCEPTEUR CXCR3
申请人:CELGENE INT II SARL
公开号:WO2018045246A1
公开(公告)日:2018-03-08
Compounds are provided having the structure of the following Formula I: where R, R1, R2, R3a and R3b are as defined herein. Pharmaceutical compositions comprising such compounds, as well as methods related to their manufacture and use, are also provided.
Selenoglutathione (GSeH) is a selenium analogue of naturally abundant glutathione (GSH). In this study, this water-soluble small tripeptide was synthesized in a high yield (up to 98%) as an oxidized diselenide form, i.e., GSeSeG (1), by liquid-phase peptide synthesis (LPPS). Obtained 1 was applied to the investigation of the glutathione peroxidase (GPx)-like catalytic cycle. The important intermediates
硒谷胱甘肽(GSEH)是天然丰富的谷胱甘肽(GSH)的硒类似物。在这项研究中,这种水溶性小三肽是通过液相肽合成(LPPS)以高产率(高达98%)以氧化二硒化物形式(即GSESEG(1))合成的。将获得的1用于研究谷胱甘肽过氧化物酶(GPx)样的催化循环。除了GSEO 2 H以外,还通过77 SE NMR光谱对重要的中间体GSE –和GSESG进行了表征。GSESG的各种硫醇,如半胱氨酸和二硫苏糖醇硫醇交换,结果发现,以促进转换为GSE -显著。此外,GSESR与1的比例不成比例观察到RSSR,这是由SE-S键的杂合裂解引发的,并被生成的硒酸酯催化。根据这些氧化还原行为,有人提出,硒原子与GPx活性位点上存在的氨基或芳香基团之间的相互作用可以促进SE-S键的杂化裂解。另一方面,当在NADPH和谷胱甘肽还原酶的存在下,催化量1与加扰的RNaSE A的4S物种反应时,天然蛋白质得到了有效的再生,
Simple and efficient Fmoc removal in ionic liquid
作者:M. L. Di Gioia、P. Costanzo、A. De Nino、L. Maiuolo、M. Nardi、F. Olivito、A. Procopio
DOI:10.1039/c7ra04425a
日期:——
A mild method for an efficient removal of the fluorenylmethoxycarbonyl (Fmoc) group in ionic liquid was developed. The combination of a weak base such as triethylamine and [Bmim][BF4] makes the entire system more efficient for the cleavage at room temperature of various amines and aminoacid methyl esters in short reaction times. The procedure works well even in the case of N-Fmoc aminoacids bearing
Quenching of the long-lived Ru(ii)bathophenanthroline luminescence for the detection of supramolecular interactions
作者:Rolf A. Kramer、Eva K. Kainmüller、Roman Flehr、Michael U. Kumke、Willi Bannwarth
DOI:10.1039/b800357b
日期:——
study based on tailor-made peptide sequences for a new robust luminescence probe-system using the long-lived luminescence of a Ru(II)-bathophenanthroline complex in combination with an efficient anthraquinone-type quencher is presented. Due do their high chemical stability, both dyes can be introduced during solid-phasepeptide synthesis avoiding post-synthetic labelling. Photophysical measurements