Synthesis of coumarin derivatives and their cytoprotective effects on t -BHP-induced oxidative damage in HepG2 cells
作者:Tomomi Ando、Mina Nagumo、Masayuki Ninomiya、Kaori Tanaka、Robert J. Linhardt、Mamoru Koketsu
DOI:10.1016/j.bmcl.2018.06.018
日期:2018.8
Coumarins are ubiquitous in higher plants and exhibit various biological actions. The aim of this study was to investigate the structure-activity relationships of coumarinderivatives on tert-butyl hydroperoxide (t-BHP)-induced oxidative damage in human hepatoma HepG2 cells. A series of coumarinderivatives were prepared and assessed for their cytoprotective effects. Among these, a caffeoyl acid-conjugated
A chemical and enzymatic synthesis was developed for five variant buprestins termed D, E, F, G and H found in jewel beetles (Coleoptera: Buprestidae). Selective acylation of the primary hydroxyl group of β-d-glucopyranose-1,2-bis(pyrrole-2-carboxylate) with substituted benzoic or cinnamic acid derivatives followed by deprotection gave the target compounds. Using coinjection the identity with the natural