6-Benzylidene-2-[4-(pyridin-3-ylcarboxy)benzylidene]cyclohexanones: A novel cluster of tumour-selective cytotoxins
作者:Atulya K. Panda、Umashankar Das、Naoki Umemura、Hiroshi Sakagami、Masami Kawase、Jan Balzarini、Erik De Clercq、Stephen G. Dimmock、Praveen K. Roayapalley、Jonathan R. Dimmock
DOI:10.1016/j.bmcl.2017.02.016
日期:2017.4
Novel cytotoxins 3-5 containing the 1,5-diaryl-3-oxo-1,4-pentadienyl pharmacophore are disclosed. The compounds in series 3 and 5 have the potential to liberate niacin which may reduce some of the side effects of antineoplastic compounds. 3a-c emerged as the most potent cytotoxic compounds with IC50 values in the low micromolar range against human Molt4/C8 and CEM CD4+ T-lymphocytes as well as murine
公开了含有1,5-二芳基-3-氧代-1,4-戊二烯基药效基团的新型细胞毒素3-5。系列3和5中的化合物具有释放烟酸的潜力,烟酸可以减少抗肿瘤化合物的某些副作用。3a-c成为最有效的细胞毒性化合物,对人Molt4 / C8和CEM CD4 + T淋巴细胞以及鼠L1210白血病细胞的IC50值在低微摩尔范围内。QSAR研究表明,细胞毒性能力与芳基取代基的Hammett sigma值的大小呈负相关。与人HGF,HPC和HPLF非恶性细胞相比,化合物3a-e对人HL-60,HSC-2,HSC-3和HSC-4肿瘤表现出肿瘤选择性毒性。代表性的有力化合物3a导致HSC-2细胞中的PARP1裂解和G0 / G1细胞周期停滞。这些化合物在小鼠中的耐受性高达300mg / kg,并且在4h后未见死亡。进行的稳定性研究未显示代表性化合物3a水解为相关的酚2a。为新酯3的进一步类似物开发制定了一些指南。