[EN] DIHYDROARTEMISININ SUBSTITUTED BY NITROGEN CONTAINING HETEROCYCLE DERIVATIVE AND USE THEREOF<br/>[FR] DÉRIVÉ DE DIHYDROARTÉMISININE SUBSTITUÉE PAR HÉTÉROCYCLE CONTENANT DE L'AZOTE ET SON UTILISATION
tyrosinase activity, and the fact that cinnamic acid is a safe natural substance with a scaffolded structure, it was speculated that appropriate cinnamic acid derivatives may exhibit potent tyrosinase inhibitory activity. Thus, ten cinnamamides were designed, and synthesized by using a Horner-Emmons olefination as the key step. Cinnamamides 4 (93.72% inhibition), 9 (78.97% inhibition), and 10 (59.09% inhibition)
NITROGEN-CONTAINING HETEROCYCLIC RING SUBSTITUTED DIHYDROARTEMISININ DERIVATIVES AND USE THEREOF
申请人:Shenyang Pharmaceutical University
公开号:US20160009729A1
公开(公告)日:2016-01-14
The present invention belongs to the field of medicinal technique, specifically relates to nitrogen-containing heterocyclic ring-substituted dihydroartemisinin derivatives and their optical isomers according to formula I or II; wherein substituent X, Y, r, R
1
, R
2
, R
3
and R
4
are as defined in the Description. The derivatives and compositions thereof can be prepared into clinically acceptable tablets, capsules, injections, ointments, etc., and thus have pharmaceutical uses in the treatment and/or prevention of cancers.