Synthesis of various 3-nitropropionamides as Mycobacterium tuberculosis isocitrate lyase inhibitor
摘要:
Various 3-nitropropionamides were synthesized and evaluated for in vitro activities against log and starved phase culture of two mycobacterial species and Mycobacterium tuberculosis (MTB) isocitrate lyase (ICL) enzyme inhibition studies. Among 22 compounds, 1-cyclopropyl-7-(3,5-dimethyl-4-(3-nitropropanoyl) piperazin-1-yl)-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (22) was found to be the most active compound in vitro with MICs of 0.16 and 0.04 mu M against log-and starved-phase culture of MTB. Compound 22 also showed good enzyme inhibition of MTB ICL with IC50 of 0.10 +/- 0.01 mu M. The docking studies also confirmed the binding potential of the compounds at the ICL active site. (C) 2011 Elsevier Ltd. All rights reserved.
Verfahren zur Herstellung von reinen Nitro-aminobenzol-Verbindungen
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0292911A2
公开(公告)日:1988-11-30
Nitro-aminobenzol-Verbindungen, die durch übliche Nitrierung einer an der Aminogruppe mit einer Schutzgruppe versehenen Aminobenzol-Verbindung erhältlich sind, werden rein hergestellt, indem man die aminogruppengeschützte Nitro-aminobenzol-Verbindung zunächst isoliert, die Schutzgruppe mittels Schwefelsäure abspaltet, sodann das aus der Hydrolyse erhaltene Sulfatsalz der Nitro-aminobenzol-Verbindung in Form des reinen, kristallinen Sulfates aus der Reaktionsmischung abscheidet und isoliert und hieraus gewünschtenfalls die freie Nitro-aminobenzol-Verbindung in reiner Form gewinnt.
Various 3-nitropropionamides were synthesized and evaluated for in vitro activities against log and starved phase culture of two mycobacterial species and Mycobacterium tuberculosis (MTB) isocitrate lyase (ICL) enzyme inhibition studies. Among 22 compounds, 1-cyclopropyl-7-(3,5-dimethyl-4-(3-nitropropanoyl) piperazin-1-yl)-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (22) was found to be the most active compound in vitro with MICs of 0.16 and 0.04 mu M against log-and starved-phase culture of MTB. Compound 22 also showed good enzyme inhibition of MTB ICL with IC50 of 0.10 +/- 0.01 mu M. The docking studies also confirmed the binding potential of the compounds at the ICL active site. (C) 2011 Elsevier Ltd. All rights reserved.