New syntheses for 11-(mercaptoundecyl)triethylene glycol and mercaptododecyltriethyleneoxy biotin amide
作者:Christie A. Canaria、Jeffrey O. Smith、C.J. Yu、Scott E. Fraser、Rusty Lansford
DOI:10.1016/j.tetlet.2005.04.091
日期:2005.7
Novel syntheses for mercaptododecyltriethyleneoxy biotin amide and 11-(mercaptoundecyl)triethylene glycol are presented here. Such alkyl thiols are popular components in creating monolayers capable of specifically binding proteins. The development of a variety of functionalized alkyl thiol compounds has a great impact on biosensor substrate design. In our synthesis of mercaptododecyltriethylencoxy biotin amide, we couple aminotriethyleneoxydodecane disulfide to the NHS-activated biotin; this technique is amenable to attaching a carboxylated molecule of interest in order to create the functionalized alkyl thiol of choice. The 11-(mercaptoundecyl)triethylene glycol synthesis presented here is an alternative method easily completed in three steps. (c) 2005 Elsevier Ltd. All rights reserved.
Pragmatic Studies on Protein-Resistant Self-Assembled Monolayers
作者:Christoph D. Hahn、Ali Tinazli、Martin Hölzl、Christa Leitner、Filip Frederix、Bernd Lackner、Norbert Müller、Christian Klampfl、Robert Tampé、Hermann J. Gruber
DOI:10.1007/s00706-007-0584-7
日期:2007.3
describes newsyntheticroutes to oligo(ethylene glycol)-terminated alkanethiols ( OEG-AT s), starting from α,ω-dibromoalkanes, which are reacted either with OEG or with trityl mercaptan in the first step. In addition to these ether conjugates of OEG and AT , analogous ester and amide conjugates were prepared by established procedures. All thiols were used to form self-assembled monolayers ( SAM s) on cleaned