[EN] TETRAHYDRONAPHTHYRIDINE AND RELATED BICYCLIC COMPOUNDS FOR INHIBITION OF RORgamma ACTIVITY AND THE TREATMENT OF DISEASE [FR] TÉTRAHYDRONAPHTYRIDINE ET COMPOSÉS BICYCLIQUES APPARENTÉS POUR L'INHIBITION DE L'ACTIVITÉ RORGAMMA ET LE TRAITEMENT D'UNE MALADIE
Synthesis of Donor-σ-Perylenebisimide-Acceptor Molecules Having PEG Swallowtails and Sulfur Anchors
作者:Rajesh Kota、Ramakrishna Samudrala、Daniell Lewis Mattern
DOI:10.1021/jo301701a
日期:2012.11.2
poly(ethylene glycol) (PEG) swallowtails with 6 ether oxygens or with 4 ether oxygens to promote hydrophilicity in orienting LB monolayers, and alkyl swallowtails ending with sulfur anchors (thioacetate, thiol, or methyl disulfide) to stabilize attachment of the D-σ-A molecules to goldelectrodes. The preparation and characterization of D-σ-A molecules containing combinations of these swallowtails with pyrene
Within the context of our work regarding the total synthesis of muraymycin nucleoside antibiotics, we have developed a synthetic approach towards (2S,3S)-3-hydroxyleucine buildingblocks. Application of different protecting group patterns led to buildingblockssuitable for C- or N-terminal derivatization as well as for solid-phase peptide synthesis. With respect to according motifs occurring in natural
(2S,3S)-3-Hydroxyleucine 可以在越来越多的生物活性天然产品中找到。在我们关于 muraymycin 核苷抗生素全合成的工作范围内,我们开发了一种针对 (2S,3S)-3-羟基亮氨酸构建块的合成方法。不同保护基团模式的应用导致了适用于 C 或 N 端衍生化以及固相肽合成的构建块。关于天然产物中出现的相应基序,我们已将这些构建块转化为 3-O-酰化结构。利用酯化和交叉复分解方案,合成了 (2S,3S)-3-羟基亮氨酸衍生物,从而为合成生物活性天然产物及其衍生物用于结构活性关系 (SAR) 研究开辟了一条极好的途径。
Synthesis of a non-cationic, water-soluble perylenetetracarboxylic diimide and its interactions with G-quadruplex-forming DNA
作者:Ramakrishna Samudrala、Xu Zhang、Randy M. Wadkins、Daniell Lewis Mattern
DOI:10.1016/j.bmc.2006.09.075
日期:2007.1.1
effectively to DNA that adopts G-quadruplex motifs. In some cases, this binding may actively drive the transition from single-strand DNA to the quadruplex form. The perylenediimides in the reported cases all have amine-containing side chains, which are thought to interact with the grooves of the quadruplex and help dictate the selectivity of these compounds for quadruplex versus duplexDNA. We synthesized
Modulating optical and electrochemical properties of perylene dyes by twisting aromatic π-system structures
作者:Ying Wang、Qi Zhang、Junbo Gong、Xin Zhang
DOI:10.1016/j.dyepig.2021.109261
日期:2021.5
devices and materials. These dye solids display near infra-red emission at 600–850 nm. Owing to strong π-π stacking interaction, planar dye solid loses its outstanding opticalproperties compared to its solution. In contrast, π-twisted dye solids retain their excellent opticalproperties including narrow emission bands and relatively high fluorescence quantum yields due to the suppression of π-π stacking
Templated Chromophore Assembly on Peptide Scaffolds: A Structural Evolution
作者:Lou Rocard、Darren Wragg、Samuel Alexander Jobbins、Lorenzo Luciani、Johan Wouters、Stefano Leoni、Davide Bonifazi
DOI:10.1002/chem.201803205
日期:2018.10.26
namely disulfide exchange, acyl hydrazone, and boronic ester formations. The effect of various structural modifications, such as the chromophores as well as their spatial organization (distance, orientation, order) on the energy transfer within the antennas was studied by means of steady‐state UV/Vis absorption and fluorescence spectroscopies. This systematic study allowed for a significant improvement