PRODRUGS AND DRUG-MACROMOLECULE CONJUGATES HAVING CONTROLLED DRUG RELEASE RATES
申请人:Santi Daniel V.
公开号:US20110263502A1
公开(公告)日:2011-10-27
The present invention provides methods and compositions that permit controlled and prolonged drug release in vivo. The compounds are either prodrugs with tunable rates of release, or conjugates of the drug with macromolecules which exhibit tunable controlled rates of release.
Photoredox Propargylation of Aldehydes Catalytic in Titanium
作者:Francesco Calogero、Andrea Gualandi、Marco Di Matteo、Simone Potenti、Andrea Fermi、Giacomo Bergamini、Pier Giorgio Cozzi
DOI:10.1021/acs.joc.1c00521
日期:2021.5.7
A practical and effective photoredox propargylation of aldehydes promoted by 10 mol % of [Cp2TiCl2] is presented. No stoichiometric metals or scavengers are used for the process. A catalytic amount of the cheap and simply prepared organic dye 3DPAFIPN is used as the reductant for titanium. The reaction displayed a broad scope, and no traces of allenyl isomers were detected for simple propargyl bromide