Enhanced Solution and Solid‐State Emission and Tunable White‐Light Emission Harvested by Supramolecular Approaches
作者:Xin‐Yue Lou、Nan Song、Ying‐Wei Yang
DOI:10.1002/chem.201902700
日期:2019.9.12
pillar[5]arene dimer with persistent mazarine blue fluorescent emission and much higher quantum yields in both solution and the solidstate in comparison with its corresponding emissive linker without pillarene units, which exhibits typical aggregation-caused quenching. According to the fluorescence data and single-crystal analyses, their contrasting fluorescent performances can be rationally ascribed
Antibacterial agents, and 4-thio azetidinone intermediates
申请人:Bristol-Myers Company
公开号:US04272437A1
公开(公告)日:1981-06-09
This invention relates to 2-substituted and 2,6-disubstituted penem compounds of the formula ##STR1## wherein Y is hydrogen, halo or certain organic substituents and X represents certain organic substituents. Also included in the invention are pharmaceutically acceptable salts of the above compounds and derivatives of the above compounds in which the carboxyl group at the 3-position is protected as by an easily removable ester protecting group. The compounds of the present invention are potent antibacterial agents or are of use as intermediates in the preparation of such agents.
We designed a combinatorial library of trifunctional scaffold-derived compounds, which were derivatized with 30 different in-house-made azides. The compounds were proposed to mimic insulin receptor (IR)-binding epitopes in the insulin molecule and bind to and activate this receptor. This work has enabled us to test our synthetic and biological methodology and to prove its robustness and reliability
development of expeditious methods to synthesize these skeletons remains a challenging task. In this work, the catalyticcyclization of biomass-derived 2-furylcarbinols with an azide to form fused triazoles is described. This approach takes advantage of a single catalyst Yb(OTf)3 and operates via a furfuryl-cation-induced intramolecular [3 + 2] cycloaddition/furan ring-opening cascade.
FRET-capable supramolecular polymers based on a BODIPY-bridged pillar[5]arene dimer with BODIPY guests for mimicking the light-harvesting system of natural photosynthesis
作者:Lu-Bo Meng、Dongqi Li、Shuhan Xiong、Xiao-Yu Hu、Leyong Wang、Guigen Li
DOI:10.1039/c5cc00398a
日期:——
AA/BB-type and A2/B3-type FRET-capable supramolecularpolymersbased on a BODIPY-bridged pillar[5]arene dimer and two BODIPY derivative guests have been successfully constructed and their application in mimicking the light-harvesting system of natural photosynthesis was studied.