[EN] HYDROXAMATE DERIVATIVES BEARING AMIDE-LACTAMS AS POTENT HDAC INHIBITORS AND THEIR USES AS MEDICAMENTS [FR] DÉRIVÉS D'HYDROXAMATE PORTANT DES AMIDE-LACTAMES À TITRE DE PUISSANTS INHIBITEURS D'HDAC ET LEURS UTILISATIONS À TITRE DE MÉDICAMENTS
[EN] HYDROXAMATE DERIVATIVES BEARING AMIDE-LACTAMS AS POTENT HDAC INHIBITORS AND THEIR USES AS MEDICAMENTS<br/>[FR] DÉRIVÉS D'HYDROXAMATE PORTANT DES AMIDE-LACTAMES À TITRE DE PUISSANTS INHIBITEURS D'HDAC ET LEURS UTILISATIONS À TITRE DE MÉDICAMENTS
申请人:SIGMA TAU IND FARMACEUTI
公开号:WO2014122222A1
公开(公告)日:2014-08-14
The present invention relates to novel amide compounds of Formula (I), and their use as anti-tumoral and pro-apoptotic agents. The invention includes the use of such compounds in medicine, in relation to cancer disease as well as other diseases where an inhibition of HDAC is responsive, and the pharmaceutical composition containing such compounds.
A series of SAHA-like molecules were prepared introducing different lactam-carboxyamides in position 7 of the suberoylanilide skeleton. The activity against different HDAC isoforms was tested and the data compared with the corresponding linear products, without substituent in position 7. In general, this modification provided an effective reinforcement of in vitro activity. While the lactam size or the CO/NH group orientation did not strongly influence the inhibition, the contemporary modification of the suberoylamide fragment gave vary active variants in the lactam series, with compound 28 (ST8078AA1) that showed IC50 values between 2 and 10 nM against all Class I HDAC isoforms, demonstrating it to be a large spectrum pan-inhibitor. This strong affinity with HDAC was also confirmed by the value of IC50 = 0.5 mu M against H460 cells, ranking 28 as one of the most potent HDAC inhibitors described so far. (C) 2013 Elsevier Ltd. All rights reserved.