作者:Martin E. Kuehne、William G. Bornmann、Istvan Markó、Yong Qin、Karen L. LeBoulluec、Deborah A. Frasier、Feng Xu、Tshilundu Mulamba、Carol L. Ensinger、Linda S. Borman、Anne E. Huot、Christopher Exon、Fred T. Bizzarro、Julia B. Cheung、Susan L. Bane
DOI:10.1039/b209990j
日期:——
Sixty-two congeners of vinblastine (VLB), primarily with modifications of the piperidine ring in the carbomethoxycleavamine moiety of the binary alkaloid, were synthesized and evaluated for cytotoxicity against murine L1210 leukemia and RCC-2 rat colon cancer cells, and for their ability to inhibit polymerization of microtubular protein at <10−6 M, and for induction of spiralization of microtubular protein, and for microtubular disassembly at 10−4 M concentrations. An ID50 range of >107 M concentrations was found for L1210 inhibition by these compounds, with the most active 1000× as potent as vinblastine.
合成了长春碱(VLB)的62个类似物,主要是通过改变二元生物碱中碳甲氧基克拉维胺部分的哌啶环来修改结构,并评估了它们对小鼠L1210白血病和大鼠RCC-2结肠癌细胞的细胞毒性,以及它们在<10^-6 M浓度下抑制微管蛋白聚合、诱导微管蛋白螺旋化和在10^-4 M浓度下解聚微管的能力。这些化合物对L1210的抑制作用表现出>10^7 M的ID50范围,其中最活跃的化合物比长春碱的效力高出1000倍。