1007875-11-7Relevant academic research and scientific papers
Synthetic Studies on Centromere-Associated Protein-E (CENP-E) Inhibitors: 2. Application of Electrostatic Potential Map (EPM) and Structure-Based Modeling to Imidazo[1,2-a]pyridine Derivatives as Anti-Tumor Agents
Hirayama, Takaharu,Okaniwa, Masanori,Banno, Hiroshi,Kakei, Hiroyuki,Ohashi, Akihiro,Iwai, Kenichi,Ohori, Momoko,Mori, Kouji,Gotou, Mika,Kawamoto, Tomohiro,Yokota, Akihiro,Ishikawa, Tomoyasu
, p. 8036 - 8053 (2015)
To develop centromere-associated protein-E (CENP-E) inhibitors for use as anticancer therapeutics, we designed novel imidazo[1,2-a]pyridines, utilizing previously discovered 5-bromo derivative 1a. By site-directed mutagenesis analysis, we confirmed the ligand binding site. A docking model revealed the structurally important molecular features for effective interaction with CENP-E and could explain the superiority of the inhibitor (S)-isomer in CENP-E inhibition vs the (R)-isomer based on the ligand conformation in the L5 loop region. Additionally, electrostatic potential map (EPM) analysis was employed as a ligand-based approach to optimize functional groups on the imidazo[1,2-a]pyridine scaffold. These efforts led to the identification of the 5-methoxy imidazo[1,2-a]pyridine derivative (+)-(S)-12, which showed potent CENP-E inhibition (IC50: 3.6 nM), cellular phosphorylated histone H3 (p-HH3) elevation (EC50: 180 nM), and growth inhibition (GI50: 130 nM) in HeLa cells. Furthermore, (+)-(S)-12 demonstrated antitumor activity (T/C: 40%, at 75 mg/kg) in a human colorectal cancer Colo205 xenograft model in mice.
2-AZA-BICYCLO[3.3.0]OCTANE DERIVATIVES
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Page/Page column 11, (2011/02/15)
The invention relates to 2-aza-bicyclo[3.3.0]octane derivatives of Formula (I) wherein A, B, and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.
THIAZOLIDINE DERIVATIVES AS OREXIN RECEPTOR ANTAGONISTS
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Page/Page column 21, (2010/05/13)
The invention relates to novel thiazolidine derivatives of the formula (I) wherein A and R1 are as described in the description and their use as medicaments, especially as orexin receptor antagonists.
TRANS-3-AZA-BICYCLO[3.1.0]HEXANE DERIVATIVES
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Page/Page column 50-51, (2009/03/07)
The invention relates to novel trans-3-aza-bicyclo[3.1.0]hexane derivatives of formula (I), wherein A, B, n and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.
2-AZA-BICYCLO[2.2.1]HEPTANE DERIVATIVES
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Page/Page column 40-41, (2009/10/18)
The invention relates to novel 2-aza-bicyclo[2.2.1]heptane derivatives of formula (I), wherein A, B, n and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as m
