Novel spirobicyclic artemisinin analogues (artemalogues): Synthesis and antitumor activities
摘要:
The sesquiterpene lactone framework of artemisinin was used as a drug repositioning prototype for the development of novel antitumor drugs. Several series of novel artemisinin analogues (artemalogues) were designed and synthesized through 1,3-dipolar cycloaddition of artemisitene with nitrile oxides or nitrones. The isoxazolidine-containing spirobicyclic artemalogue 11b turns out to be the most potent with low micromolar IC50 values against all three tumor cells, which were at least 4- to 14-fold more potent than the parent artemisinin. (C) 2015 Elsevier Masson SAS. All rights reserved.
The sesquiterpene lactone framework of artemisinin was used as a drug repositioning prototype for the development of novel antitumor drugs. Several series of novel artemisinin analogues (artemalogues) were designed and synthesized through 1,3-dipolar cycloaddition of artemisitene with nitrile oxides or nitrones. The isoxazolidine-containing spirobicyclic artemalogue 11b turns out to be the most potent with low micromolar IC50 values against all three tumor cells, which were at least 4- to 14-fold more potent than the parent artemisinin. (C) 2015 Elsevier Masson SAS. All rights reserved.