Carbonylative Coupling of Alkyl Zinc Reagents with Benzyl Bromides Catalyzed by a Nickel/NN
<sub>2</sub>
Pincer Ligand Complex
作者:Thomas L. Andersen、Aske S. Donslund、Karoline T. Neumann、Troels Skrydstrup
DOI:10.1002/anie.201710089
日期:2018.1.15
An efficient catalytic protocol for the three‐component assembly of benzyl bromides, carbon monoxide, and alkyl zinc reagents to give benzyl alkyl ketones is described, and represents the first nickel‐catalyzed carbonylative coupling of two sp3‐carbon fragments. The method, which relies on the application of nickelcomplexed with an NN2‐type pincer ligand and a controlled release of CO gas from a solid
alcohols. 5-[(4-Hydroxybenzyl)oxy]methyl}-2-furaldehyde was not only obtained in a two-step methodology but also by a biomimetic single-step synthesis. Similarly, pichiafuran C was prepared by three different syntheses, each one by a two-step procedure, also including a biomimetic approach. 5-[(4-hydroxybenzyl)oxy]methyl}-2-furaldehyde - pichiafuran C -5-(hydroxymethyl)-2-furaldehyde - Gastrodia
Exploiting the 4-Phenylquinazoline Scaffold for the Development of High Affinity Fluorescent Probes for the Translocator Protein (TSPO)
作者:Ciro Milite、Elisabetta Barresi、Eleonora Da Pozzo、Barbara Costa、Monica Viviano、Amalia Porta、Anna Messere、Gianluca Sbardella、Federico Da Settimo、Ettore Novellino、Sandro Cosconati、Sabrina Castellano、Sabrina Taliani、Claudia Martini
DOI:10.1021/acs.jmedchem.7b01031
日期:2017.9.28
The quinazoline class was exploited to search for a new translocator protein (TSPO) fluorescent probe endowed with improved affinity and residence time (RT). Computational studies on an “in-house” collection of quinazoline derivatives, featuring highly steric demanding groups at the amide nitrogen, suggested that, despite their molecular extension, these ligands are still easily lodged in the TSPO
[EN] PHENETHANOLAMINE DERIVATIVE FOR THE TREATMENT OF RESPIRATORY DISEASES<br/>[FR] DERIVE DE PHENETHANOLAMINE UTILISE DANS LE TRAITEMENT DE MALADIES RESPIRATOIRES
申请人:GLAXO GROUP LTD
公开号:WO2004037773A1
公开(公告)日:2004-05-06
The present invention relates to novel compounds of formula (I), to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases.
Regioselective hydroxylation of phenols by simultaneous photochemical generation of phenol cation-radical and hydroxyl radical
作者:Daniel Collado、Ezequiel Perez-Inestrosa、Rafael Suau、Juan T. Lopez Navarrete
DOI:10.1016/j.tet.2006.01.003
日期:2006.3
Substituted phenols having pendant isoquinoline N-oxide were synthesized and their photochemical and luminiscent properties studied. Photolysis in an acid medium was found to yield the related photohydroxylation products, in a regioselective process, in addition to the isoquinoline deoxygenated precursor. Photoinduced electron transfer from the donor phenols to the protonated form of the first excited