A DNA‐Encoded Chemical Library Incorporating Elements of Natural Macrocycles
作者:Cedric J. Stress、Basilius Sauter、Lukas A. Schneider、Timothy Sharpe、Dennis Gillingham
DOI:10.1002/anie.201902513
日期:2019.7.8
Here we show a seven‐step chemical synthesis of a DNA‐encodedmacrocyclelibrary (DEML) on DNA. Inspired by polyketide and mixed peptide‐polyketide natural products, the library was designed to incorporate rich backbone diversity. Achieving this diversity, however, comes at the cost of the custom synthesis of bifunctional building block libraries. This study outlines the importance of careful retrosynthetic
Preparation of Bifunctional Mesoporous Silica Nanoparticles by Orthogonal Click Reactions and Their Application in Cooperative Catalysis
作者:Arne T. Dickschat、Frederik Behrends、Martin Bühner、Jinjun Ren、Mark Weiß、Hellmut Eckert、Armido Studer
DOI:10.1002/chem.201200499
日期:2012.12.21
The synthesis of bifunctionalmesoporoussilicananoparticles is described. Two chemically orthogonal functionalities are incorporated into mesoporoussilica by co‐condensation of tetraethoxysilane with two orthogonally functionalized triethoxyalkylsilanes. Post‐functionalization is achieved by orthogonal surface chemistry. A thiol–ene reaction, Cu‐catalyzed 1,3‐dipolar alkyne/azide cycloaddition,
used for the preparation of the microemulsion has an impact on the incorporation of VBN3 in the polymer particles as well as on the surface reaction yield. The azide‐functionalized NPs were used as clickable polymeric scaffolds for the grafting of sparingly water‐soluble dansyl and fluorescein derivatives through copper(I)‐catalyzed azide‐alkyne cycloaddition in water in the presence of surfactants
[EN] MOLECULAR FLUOROPHORES AND PREPARATION METHOD THEREOF AND USE FOR SHORT WAVELENGTH INFRARED IMAGING<br/>[FR] FLUOROPHORES MOLÉCULAIRES ET LEUR PROCÉDÉ DE PRÉPARATION, ET LEUR UTILISATION POUR L'IMAGERIE INFRAROUGE À COURTE LONGUEUR D'ONDE
申请人:UNIV SOUTH SCIENCE & TECHNOLOGY CHINA
公开号:WO2017190345A1
公开(公告)日:2017-11-09
Provided is the design, synthesis and applications of molecular fluorophores for bioimaging in the short wavelength infrared window (1000-1700 nm). The molecular fluorophores compound comprise structures with electron accepting aromatic units, electron donating aromatic units, and an shielding units which shield the conjugated backbones from intermolecular interactions.
Efficient Synthesis of Water-Soluble Calixarenes Using Click Chemistry
作者:Eui-Hyun Ryu、Yan Zhao
DOI:10.1021/ol047468h
日期:2005.3.1
[reaction: see text] Several water-soluble calix[4]arenes were synthesized via Huisgen 1,3-dipolar cycloaddition between azides and alkynes. Cationic, anionic, and nonionic calixarenes were prepared from a common azidocalixarene intermediate. Azidocalixarenes performed better than alkynylcalixarenes as precursors. The aggregation behavior of the water-solublecalixarenes was studied by (1)H NMR spectroscopy