A means and method for treating malaria, schistosomiasis, and cancer using a spiro or dispiro 1,2,4-trioxolane is described. The preferred 1,2,4-trioxolanes include a spiroadamantane group on one side of the trioxolane group, and a spirocyclohexyl on the other side of the trioxolane group, whereby the spirocyclohexyl ring is preferably substituted at the 4-position. In comparison to artemisinin semisynthetic derivatives, the compounds of this invention are structurally simple, easy to synthesize, non-toxic, and potent against malarial parasites.
[EN] 1,2,4-TRIOXOLANE ANTIMALARIALS<br/>[FR] ANTIPALUDIQUES A BASE DE 1,2,4-TRIOXOLANE
申请人:MEDICINES MALARIA VENTURE MMV
公开号:WO2003000676A1
公开(公告)日:2003-01-03
A means and method for treating malaria, schistosomiasis, and cancer using a spiro or dispiro 1,2,4-trioxolane is described. The preferred 1,2,4-trioxolanes include a spiroadamantane group on one side of the trioxolane group, and a spirocyclohexyl on the other side of the trioxolane group, whereby the spirocyclohexyl ring is preferably substituted at the 4-position. In comparison to artemisinin semisynthetic derivatives, the compounds of this invention are structurally simple, easy to synthesize, non-toxic, and potent against malarial parasites.
Novel chiral boron and aluminum hydride complexes, compositions comprising the chiral hydride complexes, and methods for their synthesis and use are described. The novel chiral hydride complexes are of the formulas: MBH.sub.4-n-a (R*).sub.n (R').sub.a ; MBH.sub.2-b (R**) (R').sub.b ; MBH(R***); MBH(R*) (R"); MAlH.sub.4-n-a (R*).sub.n (R').sub.a ; MAlH.sub.2-b (R**)(R').sub.b ; MAlH(R***); and MAlH(R*) (R"), wherein M is Na.sup.+, Li.sup.+ or K.sup.+ ; each R* is independently a monodentate chiral ligand; R** is a bidentate chiral ligand; R*** is a tridentate chiral ligand; R' is a monodentate achiral ligand; R" is a bidentate achiral ligand; n is 1-3; a is 0-2; and b is 0-1, with the proviso that n+a.ltoreq.3, and with the further proviso that when R** is S-BINOL, M is not Li.sup.+.
Compounds of a certain formula I, in which Ra and Rb have the meanings indicated in the description, are novel effective compounds with anti-proliferative and apoptosis inducing activity.