[EN] PROCESSES FOR THE PREPARATION OF ORTHO-ALLYLATED HYDROXY ARYL COMPOUNDS<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS HYDROXY-ARYLE ORTHO-ALLYLÉS
申请人:UNIV MCMASTER
公开号:WO2021237371A1
公开(公告)日:2021-12-02
The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).
SAR analysis revealed that the anti-proliferative activity of the xanthones is substantially influenced by the position and number of attached hydroxyl and prenyl groups, and the presence of hydroxyl group ortho to the carbonyl function of xanthone scaffold contributes significantly to their cytotoxicity. The new prenylatedxanthone 20 with a relatively simple structure, namely 1,3,8-trihydroxy-2-prenylxanthone
PROCESSES FOR THE PREPARATION OF ORTHO-ALLYLATED HYDROXY ARYL COMPOUNDS
申请人:McMaster University
公开号:US20210380513A1
公开(公告)日:2021-12-09
The present application describes process for preparing an ortho-allylated hydroxy aryl compounds such as compounds of Formula (I) by reacting an allylic alcohol with a hydroxy aryl compound in the presence of aluminum compound selected from alumina and aluminum alkoxides and in a non-protic solvent wherein at least one carbon atom ortho to the hydroxy group in the hydroxy aryl compound is unsubstituted. The present application also includes compounds of Formula (I).
Regiospecific Prenylation of Hydroxyxanthones by a Plant Flavonoid Prenyltransferase
作者:Ruishan Wang、Ridao Chen、Jianhua Li、Xiao Liu、Kebo Xie、Dawei Chen、Ying Peng、Jungui Dai
DOI:10.1021/acs.jnatprod.6b00417
日期:2016.8.26
prenyltransferase with substrate flexibility from Morus alba, is demonstrated. Among the enzymatic products, 2-dimethylallyl-1,3,7-trihydroxyxanthone (3a) effectively attenuated glutamate-induced injury in SK-N-SH neuroblastoma cells. These results suggest a potential approach for the synthesis of bioactive prenylated xanthones by a substrate-relaxed flavonoid prenyltransferase.