Solar-driven photoelectrocatalytic degradation of anticancer drugs using TiO<sub>2</sub>nanotubes decorated with SnS quantum dots
作者:Paweł Mazierski、Patrycja Wilczewska、Wojciech Lisowski、Tomasz Klimczuk、Anna Białk-Bielińska、Adriana Zaleska-Medynska、Ewa M. Siedlecka、Aleksandra Pieczyńska
DOI:10.1039/d2dt00407k
日期:——
SnS-Ti/TiO2photoanode for anticancer drug degradation.
用于抗癌药物降解的 SnS-Ti/TiO2 光阳极
Complementation of Biotransformations with Chemical C–H Oxidation: Copper-Catalyzed Oxidation of Tertiary Amines in Complex Pharmaceuticals
作者:Julien Genovino、Stephan Lütz、Dalibor Sames、B. Barry Touré
DOI:10.1021/ja405471h
日期:2013.8.21
The isolation, quantitation, and characterization of drug metabolites in biological fluids remain challenging. Rapid access to oxidized drugs could facilitate metabolite identification and enable early pharmacology and toxicity studies. Herein, we compared biotransformations to classical and new chemical C-H oxidation methods using oxcarbazepine, naproxen, and an early compound hit (phthalazine 1). These studies illustrated the low preparative efficacy of biotransformations and the inability of chemical methods to oxidize complex pharmaceuticals. We also disclose an aerobic catalytic protocole (CuI/air) to oxidize tertiary amines and benzylic CH's in drugs. The reaction tolerates a broad range of functionalities and displays a high level of chemoselectivity, which is not generally explained by the strength of the C-H bonds but by the individual structural chemotype. This study represents a first step toward establishing a chemical toolkit (chemotransformations) that can selectively oxidize C-H bonds in complex pharmaceuticals and rapidly deliver drug metabolites.