Speciation of Hg2+ and MeHg+ has been achieved by in vitro approaches with fluorogenic probes supported in cultured cells.
Hg2+和MeHg+的物种分化已通过在培养细胞中使用荧光探针的in vitro方法实现。
Polyethylene glycol-based homologated ligands for nicotinic acetylcholine receptors☆
作者:Bradley A. Scates、Bethany L. Lashbrook、Benjamin C. Chastain、Kaoru Tominaga、Brandon T. Elliott、Nicholas J. Theising、Thomas A. Baker、Richard W. Fitch
DOI:10.1016/j.bmc.2008.10.045
日期:2008.12.15
ethers were conjugated with three ligand series for nicotinic acetylcholine receptors. Conjugates of acetylaminocholine, the cyclic analog 1-acetyl-4,4-dimethylpiperazinium, and pyridyl ether A-84543 were prepared. Each series was found to retain significant affinity at nicotinic receptors in rat cerebral cortex with tethers of up to six PEG units. Such compounds are hydrophilic ligands which may serve
Stereoselective Radical Azidooxygenation of Alkenes
作者:Bo Zhang、Armido Studer
DOI:10.1021/ol402106x
日期:2013.9.6
Radical azidooxygenation of various alkenes is described. A readily prepared N3-iodine(III) reagent acts as a clean N3-radical precursor. Radical generation is achieved with TEMPONa acting as a mild organic reducing reagent. The C-radical generated after N3-radical addition is efficiently trapped by in situ generated TEMPO. Yields are good to excellent, and for cyclic systems azidooxygenation occurs
Synthesis of Diacetylene-Containing Peptide Building Blocks and Amphiphiles, Their Self-Assembly and Topochemical Polymerization in Organic Solvents
作者:Eike Jahnke、Jan Weiss、Sonja Neuhaus、Tobias N. Hoheisel、Holger Frauenrath
DOI:10.1002/chem.200801668
日期:2009.1.2
hydrogen‐bonding sites gave rise to high aspect ratio nanoscopic fibrils with helical superstructures but, in contrast to the related macromonomers, did not lead to uniform supramolecular polymers. The UV‐induced topochemicalpolymerization within the β‐sheet aggregates was successful, proving parallel β‐strand orientation and highlighting the effect of the number and pattern of N‐H⋅⋅⋅OC hydrogen‐bonding sites