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Copper-Catalyzed Chan–Lam Coupling between Sulfonyl Azides and Boronic Acids at Room Temperature
Moon, Soo-Yeon,Nam, Jungsoo,Rathwell, Kris,Kim, Won-Suk American Chemical Society 2014 ORGANIC LETTERS Vol.16 No.2
<P>A mild and efficient method for the synthesis of <I>N</I>-arylsulfonamides in the presence of 10 mol % of CuCl is demonstrated. The reaction proceeds readily at room temperature in an open flask using a variety of sulfonyl azides and boronic acids without any base, ligand, or additive.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2014/orlef7.2014.16.issue-2/ol403717f/production/images/medium/ol-2013-03717f_0013.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol403717f'>ACS Electronic Supporting Info</A></P>
Probing Cell-Surface Carbohydrate Binding Proteins with Dual-Modal Glycan-Conjugated Nanoparticles
Park, Sungjin,Kim, Gun-Hee,Park, Seong-Hyun,Pai, Jaeyoung,Rathwell, Dominea,Park, Jin-Yeon,Kang, Young-Sun,Shin, Injae American Chemical Society 2015 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.137 No.18
<P>Dual-modal fluorescent magnetic glyconanoparticles have been prepared and shown to be powerful in probing lectins displayed on pathogenic and mammalian cell surfaces. Blood group H1- and Le<SUP>b</SUP>-conjugated nanoparticles were found to bind to BabA displaying <I>Helicobacter pylori</I>, and Le<SUP>a</SUP>- and Le<SUP>b</SUP>-modified nanoparticles are both recognized by and internalized into DC-SIGN and SIGN-R1 expressing mammalian cells via lectin-mediated endocytosis. In addition, glyconanoparticles block adhesion of <I>H. pylori</I> to mammalian cells, suggesting that they can serve as inhibitors of infection of host cells by this pathogen. It has been also shown that owing to their magnetic properties, glyconanoparticles are useful tools to enrich lectin expressing cells. The combined results indicate that dual-modal glyconanoparticles are biocompatible and that they can be employed in lectin-associated biological studies and biomedical applications.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2015/jacsat.2015.137.issue-18/jacs.5b00592/production/images/medium/ja-2015-00592c_0010.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja5b00592'>ACS Electronic Supporting Info</A></P>
Microbial biosynthesis of medicinally important plant secondary metabolites
Song, Myoung Chong,Kim, Eun Ji,Kim, Eunji,Rathwell, Kris,Nam, Sang-Jip,Yoon, Yeo Joon The Royal Society of Chemistry 2014 Natural product reports Vol.31 No.11
<P>Covering: up to 2014</P><P>Secondary metabolites derived from plants are a valuable source of pharmaceuticals, nutraceuticals, and cosmetics. To harness the potential of these natural products, reliable methods must be developed for their rapid and sustainable resupply. Microbial production of plant secondary metabolites through the heterologous expression of plant biosynthetic genes represents one such solution. This highlight focuses on recent advances in the microbial biosynthesis of plant secondary metabolites including terpenoids, flavonoids, and alkaloids as well as providing a brief insight into the current limitations and future prospects.</P> <P>Graphic Abstract</P><P>This review covers recent advances in the microbial production of plant secondary metabolites including terpenoids, flavonoids, and alkaloids through the heterologous expression of plant biosynthetic genes, as well as providing a brief insight into the current limitations and future prospects. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c4np00057a'> </P>