artemisinin derivatives bearing Mannich base group were prepared and tested for their antimalarial activity. These water-soluble artemisinin derivatives were more stable than sodium artesunate and few compounds were found to be more active against Plasmodium berghei in mice than artesunic acid by oral administration. Two most potent derivatives 17b and 17d were examined for their antimalarial activity
A process for the preparation of 1-(3,5-diacetoxyphenyl)-ethanol by catalytic hydrogenation of 3,5-diacetoxy-acetophenone in the presence of a Ni-alloy as catalyst in a C
1-3
-carboxylic acid ester as solvent.
[EN] PROCESS FOR RESVERATROL INTERMEDIATE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN INTERMÉDIAIRE DU RESVÉRATROL
申请人:DSM IP ASSETS BV
公开号:WO2010079123A2
公开(公告)日:2010-07-15
A process for the preparation of 1-(3,5-diacetoxyphenyl)-ethanol by catalytic hydrogenation of 3,5-diacetoxy-acetophenone in the presence of a Ni-alloy as catalyst in a C1-3-carboxylic acid ester as solvent.