Comptothecin analogues, preparation methods therefor, use thereof as drugs, and pharmaceutical compositions containing said analogues
申请人:Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)
公开号:US06339091B1
公开(公告)日:2002-01-15
The compound of the formula
wherein the substituents are defined as in the specification and its non-toxic, pharmaceutically acceptable salts which are useful for the treatment of viral infections, parasitic diseases and the treatment of cancer.
An efficient and versatile tandem process of acetalization and cycloisomerization reactions has been developed for the reactions of 1-alkynyl-2-carbonylquinoline substrates. The reaction occurs thanks to Au(I) and Ag(I) catalysis. Silver(I) catalysis has been extensively studied (11 different silver species) on a broad range of quinoline derivatives (variation of alkyne substituent, of carbonyl function
Camptothecin analogues, preparation methods therefor, use thereof as
申请人:Societe de Conseils de Recherches et d'Applications Scientifiques
公开号:US05981542A1
公开(公告)日:1999-11-09
A camptothecin analog characterized in that the hydroxy lactone of the camptothecin is a .beta.-hydroxy lactone or the corresponding .beta.-hydroxyacid, resulting from the opening of said lactone, or a derivative of said .beta.-hydroxyacid, or a Pharmaceutically acceptable salt thereof, is disclosed. In particular, compounds of formulae (I) and (II) are disclosed. Methods for preparing the compounds of formulae (I) and (II), pharmaceutical compositions containing said containing said compounds, and their use, particularly as topoisomerase inhibitors and antitumoral drugs, are also disclosed.