4-Aza-2,3-dehydro-4-deoxypodophyllotoxin analogues 3a-n were synthesized through quinolines 2a-n. Comparison of their cytotoxicity against P-388 leukemia cells revealed that the steric effects of the ring B substituents on the activity are greater than the electronic effects, while the presence of a methoxy group on the ring E is not essential to exhibit potent cytotoxicity. Analogues 3a and 3b proved to be more than twice as cytotoxic as natural podophyllotoxin (1). (C) 2000 Elsevier Science Ltd. All rights reserved.
4-AZAPODOPHYLOTOXINS COMPOUNDS
申请人:PETTIT George Robert
公开号:US20190077808A1
公开(公告)日:2019-03-14
The present disclosure relates to 4-azapodophylotoxins compounds, pharmaceutical compositions comprising such compounds, kits, and methods for using such compounds or pharmaceutical compositions.
Enantioselective Organocatalytic Partial Transfer Hydrogenation of Lactone-Fused Quinolines
作者:Alexandre Aillerie、Vincent Lemau de Talancé、Aurélien Moncomble、Till Bousquet、Lydie Pélinski
DOI:10.1021/ol5011196
日期:2014.6.6
The first enantioselective synthesis of 4-aza-podophyllotoxin derivatives by partial transferhydrogenation of lactone-fused quinolines was achieved using a chiral Brønstedacid catalyst. This reaction was extended to a large scope of substrates with good yields and enantioselectivities.
tetronic acid (2) or 1,3-cyclopentanedione (3) produced anilinolactones 4a-d and anilinocyclopentenone 5a, respectively, which were then condensed with benzaldehydes to yield 4-aza-1-arylnaphthalene lignan analogs 6–19.