The excesses of reagents used in protein chemistry are often incompatible with the reduced or even inverse stoichiometries used for efficient radiolabeling. Analysis and screening of aqueous Pd(0) ligand systems has revealed the importance of a guanidine core and the discovery of 1,1-dimethylguanidine as an enhanced ligand for aqueous Suzuki-Miyaura cross-coupling. This novel Pd catalyst system has now allowed the labeling of small molecules, peptides, and proteins with the fluorine-18 prosthetic [F-18]4-fluorophenylboronic acid. These findings now enable site-specific protein F-18-labeling under biologically compatible conditions using a metal-triggered reaction.
Solid-phase synthesis of 2′-hydroxychalcones. Effects on cell growth inhibition, cell cycle and apoptosis of human tumor cell lines
作者:Marta Perro Neves、Sara Cravo、Raquel T. Lima、M. Helena Vasconcelos、M. São José Nascimento、Artur M.S. Silva、Madalena Pinto、Honorina Cidade、Arlene G. Corrêa
DOI:10.1016/j.bmc.2011.11.042
日期:2012.1
Thirty-one 2′-hydroxychalcones were prepared via solid-phase synthesis by base-catalyzed aldol condensation of substituted2′-hydroxyacetophenones and benzaldehydes. Chalcones were tested for their growth inhibitory activity in three human tumor cell lines (MCF-7, NCI-H460 and A375-C5) using the SRB assay. Results revealed that several of the tested compounds caused a pronounced dose-dependent growth
[EN] IONIZABLE AMINE AND ESTER LIPIDS AND LIPID NANOPARTICLES<br/>[FR] LIPIDES D'ESTER ET D'AMINE IONISABLES ET NANOPARTICULES LIPIDIQUES
申请人:[en]BEAM THERAPEUTICS INC.
公开号:WO2023121970A1
公开(公告)日:2023-06-29
The present disclosure describes compositions, preparations, nanoparticles (such as lipid nanoparticles), and/or nanomaterials and methods of their use.