[EN] SUBSTITUTED ISOQUINOLINES AND THEIR USE AS TUBULIN POLYMERIZATION INHIBITORS<br/>[FR] ISOQUINOLÉINES SUBSTITUÉES ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE POLYMÉRISATION DES TUBULINES
申请人:EXONHIT S A
公开号:WO2011151423A1
公开(公告)日:2011-12-08
The present invention relates generally to substituted isoquinolines and their use as tubulin polymerization inhibitors. In particular, the invention relates to substituted isoquinolines which possess useful therapeutic activity, use of these compounds in methods of therapy and the manufacture of medicaments as well as compositions containing these compounds.
SUBSTITUTED ISOQUINOLINES AND THEIR USE AS TUBULIN POLYMERIZATION INHIBITORS
申请人:Leblond Bertrand
公开号:US20130131018A1
公开(公告)日:2013-05-23
The present invention relates generally to substituted isoquinolines and their use as tubulin polymerization inhibitors. In particular, the invention relates to substituted isoquinolines which possess useful therapeutic activity, use of these compounds in methods of therapy and the manufacture of medicaments as well as compositions containing these compounds.
In order to clarify the mechanism of the abnormal Fischer indolization of 2-methoxyphenylhydrazones the Fischer indolization of ethly pyruvate 2-(2, 6-dimethoxyphenyl)phenylhydrazone (6) was undertaken using ethanolic hydrogen chloride and zinc chloride as an acid catalyst. The cyclization was found to take place predominantly on the 2, 6-dimethoxyphenyl nucleus to give the corresponding indoles, although the yields of indoles formed were low. Some non-indolic by-products were also produced which might give information about the mechanism of Fischer indolization. In particular, the formation of 3, 5-dimethoxy-4-anilinobenzaldehyde (15) suggests that the first cyclization step in Fischer indolization could take place at the para position of phenylhydrazone as a side reaction.