Directsynthesis of organicazidesfrom alcohols was developed. Azide transfer of 2-azido-1,3-dimethylimidazoliniumhexafluorophosphate (ADMP) to alcohols proceeds to give the corresponding azides under mild reaction conditions, which were easily isolated because the byproducts are highly soluble in water.
is associated with the tumor angiogenesis and metastasis. In this report, one new series of leucine ureido derivatives containing the triazole moiety was designed, synthesized and evaluated as APN inhibitors. Among them, compound 13v showed the best APN inhibition with an IC50 value of 0.089 ± 0.007 μM, which was two orders of magnitude lower than that of bestatin (IC50 = 9.4 ± 0.5 μM). Compound 13v
Benzylic C–H Azidation Using the Zhdankin Reagent and a Copper Photoredox Catalyst
作者:Pauline T. G. Rabet、Gabriele Fumagalli、Scott Boyd、Michael F. Greaney
DOI:10.1021/acs.orglett.6b00512
日期:2016.4.1
azidation method for C–N bond formation at benzylic C–H positions is described using copper-catalyzed visible light photochemistry and the Zhdankin azidoiodinane reagent. The method is applicable to a wide range of substrates bearing different functional groups and having a primary, secondary, or tertiary benzylic position, and is thought to proceed through a radical chain reaction.
Click and Pick: Identification of Sialoside Analogues for Siglec-Based Cell Targeting
作者:Cory D. Rillahan、Erik Schwartz、Ryan McBride、Valery V. Fokin、James C. Paulson
DOI:10.1002/anie.201205831
日期:2012.10.29
Click ‘n’ chips: Azide and alkyne‐bearing sialic acids (purple diamond; see picture) were subjected to high‐throughput click chemistry to generate a library of sialic acid analogues. Microarray printing of the library and screening with the siglec family of sialic‐acid‐binding proteins, led to the identification of high‐affinity ligands for siglec‐9 and siglec‐10.