2-(4-Chlorophenyl)-2-oxoethyl 4-benzamidobenzoate derivatives, a novel class of SENP1 inhibitors: Virtual screening, synthesis and biological evaluation

• Published in: Bioorganic & medicinal chemistry letters Vol. 22; no. 22; pp. 6867 - 6870
• Main Authors: Chen, Yingyi, Wen, Donghua, Huang, Zhimin, Huang, Min, Luo, Yu, Liu, Bin, Lu, Han, Wu, Yingli, Peng, Yuefeng, Zhang, Jian
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 15.11.2012; Elsevier
• Subjects: Benzamides - chemical synthesis; Benzamides - chemistry; Benzamides - metabolism; Binding Sites; Biological and medical sciences; Chemistry; Chemistry, Medicinal; Chemistry, Organic; Cysteine Endopeptidases; drugs; Endopeptidases - chemistry; Endopeptidases - metabolism; Humans; Life Sciences & Biomedicine; Medical sciences; men; Molecular Docking Simulation; mortality; para-Aminobenzoates - chemical synthesis; para-Aminobenzoates - chemistry; para-Aminobenzoates - metabolism; Pharmacology & Pharmacy; Pharmacology. Drug treatments; Physical Sciences; prostatic neoplasms; Protease Inhibitors - chemical synthesis; Protease Inhibitors - chemistry; Protease Inhibitors - metabolism; Protein Binding; proteinases; Science & Technology; screening; SENP1; Structure-Activity Relationship; structure-activity relationships; Virtual screening; Virtual screening; Structure–activity relationship; SENP1; ENZYME; Structure-activity relationship; SMALL-MOLECULE INHIBITORS; SENTRIN; SUMOYLATION; PROBES; Structure activity relation; Chlorine Organic compounds; Inhibitor; Chemical synthesis; Biological activity
• DOI: 10.1016/j.bmcl.2012.09.037
• ISSN: 0960-894X; 1464-3405

Chemical structure of 2-(4-chlorophenyl)-2-oxoethyl 4-(3-(benzyloxy)benzamido)benzoate, a Sentrin-specific protease 1 (SENP1) inhibitor. Prostate cancer is one of the most prevalent types of malignant cancers in men and has a high mortality rate among all male cancers. Previous studies have demonstrated that Sentrin/SUMO-specific protease 1 (SENP1) plays an important role in the occurrence and development of prostate cancer, and has been identified as a novel drug target for development of small molecule drugs against prostate cancer. In this paper, we used virtual screening and docking to identify compound J5 as a novel lead compound inhibiting SENP1, from SPECS library. We further investigated the SAR (structure–activity relationship) of the benzoate substituent of compound J5, and discovered compounds 8d and 8e as better small molecule inhibitors of SENP1. Both compounds are the high potent SENP1 small molecule inhibitors discovered up to date, and further lead optimization may lead to a series of novel anti-SENP1 agents. Further SAR studies are in process and will be reported in due course.