Novel chemoenzymatic methodology for the regioselective glycine loading on polyhydroxy compounds
作者:Shashwat Malhotra、Marcelo Calderón、Ashok K. Prasad、Virinder S. Parmar、Rainer Haag
DOI:10.1039/b927021c
日期:——
In the present work, we have developed a highly efficient temperature-dependent chemo-enzymatic methodology for the regioselective synthesis of novel esters of glycerol, G1 tri-glycerol dendrons and related esters for the first time using 4-nitrophenyl 2-(tert-butoxycarbonyl)acetate (Boc-gly-Ph-pNO2) (2) as the acylating agent. This methodology offers efficient and controlled loading of amino acid (glycine) on polyhydroxy compounds.
Enhancement of fluorescent properties of near-infrared dyes using clickable oligoglycerol dendrons
作者:Orit Redy-Keisar、Katharina Huth、Uwe Vogel、Bernd Lepenies、Peter H. Seeberger、Rainer Haag、Doron Shabat
DOI:10.1039/c5ob00299k
日期:——
imaging. Here, we demonstrate that oligoglycerol dendrons effectively enhance the fluorescence properties of an NIR dye by increasing the solubility in water and the prevention of aggregate formation. First- and second-generation oligoglycerol dendrons were conjugated to an NIR dye via a dipolar-cycloaddition (click) reaction. The two new dye conjugates exhibited enhanced NIR fluorescent emission and
Synthesis of non-ionic bolaamphiphiles and study of their self-assembly and transport behaviour for drug delivery applications
作者:Rashmi Rashmi、Abhishek K. Singh、Katharina Achazi、Boris Schade、Christoph Böttcher、Rainer Haag、Sunil K. Sharma
DOI:10.1039/c8ra05921g
日期:——
Non-ionic bolaamphiphiles as nanocarrier for biomedical applications.
非离子双链两性分子作为生物医学纳米载体。
[DE] LINEAR-DENDRITISCHE POLYGLYCEROLVERBINDUNGEN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG<br/>[EN] LINEAR-DENDRITIC POLYGLYCEROL COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF<br/>[FR] COMPOSÉS DE POLYGLYCÉROL LINÉAIRES-DENDRITIQUES, PROCÉDÉ DE PRÉPARATION ET UTILISATION
申请人:UNIV BERLIN FREIE
公开号:WO2010000713A1
公开(公告)日:2010-01-07
Die Erfindung betrifft neue linear-dendritische Polyglycerolverbindungen, Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Solubilisierung von hydrophoben Substanzen, insbesondere als Träger bzw. Transportsystem für Wirk- und/oder Signalstoffe.
New Approaches Towards Monoamino Polyglycerol Dendrons and Dendritic Triblock Amphiphiles
dyes, new amphiphilic molecules are needed. In this paper we describe a new class of triblockamphiphiles that we have synthesized by a straightforward convergent approach. These amphiphiles each consist of a nonpolar biphenyl core and a polar shell based on various generations of monoaminopolyglyceroldendrons, coupled to the core through amide linkages (1). For the synthesis of these monoamino dendrons