Solid-Phase Synthesis of a Combinatorial Methylated (±)-Epigallocatechin Gallate Library and the Growth-Inhibitory Effects of these Compounds on Melanoma B16 Cells
We report on the solid‐phase synthesis of a combinatorialmethylated (±)‐epigallocatechin gallate (EGCG) library and its biological evaluation. Epigallocatechin gallate (EGCG) and its methylated derivatives, which are members of the catechin family, exhibit various anti‐cancer effects. The solid‐phase synthesis of methylated EGCG involves the preparation of the α‐acyloxyketone by the coupling of a
Intermolecular Aryl C−H Amination through Sequential Iron and Copper Catalysis
作者:Mohamed A. B. Mostafa、Ewen D. D. Calder、Daugirdas T. Racys、Andrew Sutherland
DOI:10.1002/chem.201605671
日期:2017.1.23
regioselective method for para-amination of activated arenes has been developed through a combination of iron and copper catalysis. A diverse range of products were obtained from an operationally simple one-pot, two-step procedure involving bromination of the aryl substrate with the powerful Lewis acid iron(III) triflimide, followed by a copper(I)-catalysed N-arylation reaction. This two-step dehydrogenative