Synthetic Access to Poly-Substituted 11H-Pyrido[3,2-a]carbazoles, a DNA-Intercalating Ellipticine Related Structure, and Their Antiproliferative Activity
摘要:
The facile procedure for the synthesis of the 11H-pyrido[3,2-a]carbazole structure involving the Fischer indole cyclization on tetrahydroquinolinones, available from enaminones and methyl 2-formyl-3-oxopropanoate, followed by the aromatization of the resulting 5,6-dihydro derivatives is described. This method allows for the introduction of substituents at C2, C6, and C8 to the scaffold by choice of the starting materials. In the biological testing, introduction of the phenyl group at C6 is significantly effective to improve the antiproliferative activity.
[EN] IMIDAZO [1, 2 - B] PYRIDAZINE - BASED COMPOUNDS, COMPOSITIONS COMPRISING THEM, AND USES THEREOF<br/>[FR] COMPOSÉS À BASE D'IMIDAZO [1, 2-B] PYRIDAZINE, COMPOSITIONS LES COMPRENANT ET UTILISATIONS DE CEUX-CI
申请人:LEXICON PHARMACEUTICALS INC
公开号:WO2013134219A1
公开(公告)日:2013-09-12
Imidazo[1,2-b]pyridazine-based compounds of the formula (I): are disclosed, wherein R1, R2 and R3 are defined herein. Compositions comprising the compounds and methods of their use to treat, manage and/or prevent diseases and disorders mediated by mediated by adaptor associated kinase 1 activity are also disclosed.
A number of novel tetracyano‐substituted dihydrotetraaza[14]annulene (DH‐TAA) analogues were obtained in a simple and convenient way by one‐pot synthesis. The ligands, as well as their complexes with nickel(II), copper(II) and palladium(II) ions were characterised, including X ray structures for seven compounds. The X‐ray analysis shows relatively short distances between tetraazamacrocyclic rings (3
Imidazo[1,2-b]pyridazine-based compounds, compositions comprising them, and methods of their use
申请人:Bi Yingzhi
公开号:US08969565B2
公开(公告)日:2015-03-03
Imidazo[1,2-b]pyridazine-based compounds of the formula:
are disclosed, wherein R1, R2 and R3 are defined herein. Compositions comprising the compounds and methods of their use to treat, manage and/or prevent diseases and disorders mediated by mediated by adaptor associated kinase 1 activity are also disclosed.
IMIDAZO[1,2-b]PYRIDAZINE-BASED COMPOUNDS, COMPOSITIONS COMPRISING THEM, AND METHODS OF THEIR USE
申请人:BI Yingzhi
公开号:US20130245021A1
公开(公告)日:2013-09-19
Imidazo[1,2-b]pyridazine-based compounds of the formula:
are disclosed, wherein R
1
, R
2
and R
3
are defined herein. Compositions comprising the compounds and methods of their use to treat, manage and/or prevent diseases and disorders mediated by mediated by adaptor associated kinase 1 activity are also disclosed.