Design, synthesis, and antitumor activity-absolute configuration relationships of podophyllotoxin aza-analogues
摘要:
Optically active and racemic podophyllotoxin aza-analogues 3 approximately 7 were designed and synthesized by a highly stereoselective condensation reaction of a cyclic urethane 10 or 16 with 3,4,5-trimethoxybenzaldehyde 11 and were found to show a promising in vitro and in vivo antitumor activity.
Design, synthesis, and antitumor activity-absolute configuration relationships of podophyllotoxin aza-analogues
摘要:
Optically active and racemic podophyllotoxin aza-analogues 3 approximately 7 were designed and synthesized by a highly stereoselective condensation reaction of a cyclic urethane 10 or 16 with 3,4,5-trimethoxybenzaldehyde 11 and were found to show a promising in vitro and in vivo antitumor activity.
Efficient stereoselective synthesis of 2-aza-4′-demethylepipodophyllotoxin
作者:Kiyoshi Tomioka、Yoshihiro Kubota、Kenji Koga
DOI:10.1039/c39890001622
日期:——
2-Aza-4′-demethylepipodophyllotoxin (6) has been efficiently synthesized in 40% yield from (7) in three steps by a highly regioselctive and stereoselctive cyclization of (8) with (9).
manner and stimulated double strand DNA breaks in supercoiled circular plasmid DNA, resulting in the production of linear DNA. These results showed that the topoisomerase II inhibition of the ortho-quinone 3 is due to stabilization of the topoisomerase II-DNA covalent binary complex. On the other hand, the ortho-quinone 3 did not inhibit the relaxation process of supercoiled DNA by topoisomerase I at
Synthesis and antitumor activity of podophyllotoxin aza-analogues
作者:Kiyoshi Tomioka、Yoshihiro Kubota、Kenji Koga
DOI:10.1016/s0040-4039(00)99167-6
日期:1989.1
The synthesis of 4-desoxy-2-azapodophyllotoxins
作者:J. Van der Eycken、J.-P. Bosmans、D. Van Haver、M. Vandewalle、A. Hulkenberg、W. Veerman、R. Nieuwenhuizen
DOI:10.1016/s0040-4039(01)80681-x
日期:1989.1
Design, synthesis, and antitumor activity-absolute configuration relationships of podophyllotoxin aza-analogues
作者:Kiyoshi Tomioka、Yoshihiro Kubota、Kenji Koga
DOI:10.1016/s0040-4020(01)80545-7
日期:1993.2
Optically active and racemic podophyllotoxin aza-analogues 3 approximately 7 were designed and synthesized by a highly stereoselective condensation reaction of a cyclic urethane 10 or 16 with 3,4,5-trimethoxybenzaldehyde 11 and were found to show a promising in vitro and in vivo antitumor activity.