title: De novo design, synthesis and biological evaluation of 1,4-dihydroquinolin-4-ones and 1,2,3,4-tetrahydroquinazolin-4-ones as potent kinesin spindle protein (KSP) inhibitors.
abstract: Kinesin spindle protein (KSP) inhibitors are a promising class of anticancer agents that cause mitotic arrest in cells from a failure to form functional bipolar mitotic spindles. Here, we report the design, synthesis and biological evaluation of a novel series of 1,4-dihydroquinolin-4-ones and 1,2,3,4-tetrahydroquinazolin-4-ones using de novo design method. The synthesized compound was evaluated and proved to have potent inhibitory activities in the KSP ATPase. Compounds 15j and 15p show potent inhibitory activities in cell proliferation assays. Preferred compound 15j markedly induced G2/M phase cell cycle arrest with characteristic monoastral spindles and subsequent cell death in A549 cells. In vivo evaluation of 15j on the growth of transplantable S180 sarcoma in mice suggested its therapeutic potential for further development.
authors.affiliation: Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Jiang
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.forename: Wu-Tong
authors.initials: WT
authors.lastname: Wu
authors.forename: Qing-Long
authors.initials: QL
authors.lastname: Guo
authors.forename: Qi-Dong
authors.initials: QD
authors.lastname: You
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D002453:Cell Cycle / Q000187:drug effects; D016923:Cell Death / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D015195:Drug Design; D006801:Humans; D016547:Kinesins / Q000378:metabolism*; D051379:Mice; D008813:Mice, Inbred ICR; D008958:Models, Molecular; D015394:Molecular Structure; D015363:Quinolones / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D012510:Sarcoma 180 / Q000188:drug therapy* / Q000473:pathology; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D013764:Tetrahydronaphthalenes / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D023041:Xenograft Model Antitumor Assays
chemical_list: D000970:Antineoplastic Agents; C470243:KIF11 protein, human; D015363:Quinolones; D013764:Tetrahydronaphthalenes; D016547:Kinesins