Synthesis and antitumor activity of tropolone derivatives. 7. Bistropolones containing connecting methylene chains
作者:Masatoshi Yamato、Junko Ando、Katsuhito Sakaki、Kuniko Hashigaki、Yusuke Wataya、Shigeru Tsukagoshi、Tazuko Tashiro、Takashi Tsuruo
DOI:10.1021/jm00080a010
日期:1992.1
Bistropolone derivatives (4-12) containing differing lengths of linkage between the two tropolone rings were prepared and examined for their antitumor activity in in vitro (KB cell) and in vivo (leukemia P388 in mice) systems. Parent compound 3, related compounds previously prepared, and the new compounds 4-12 were evaluated for inhibitory activity against ribonucleotide reductase by indirect means
制备在两个对tro酮环之间具有不同键长的Bistropolone衍生物(4-12),并在体外(KB细胞)和体内(小鼠白血病P388)系统中检查其抗肿瘤活性。通过间接方法评估母体化合物3,先前制备的相关化合物和新化合物4-12对核糖核苷酸还原酶的抑制活性,以测量其对dNTP库失衡的影响。当前的结构-活性关系结果表明,在体内有效活性的双tropolones通过在酶的两个活性位点与两个铁螯合来抑制细胞内核糖核苷酸还原酶。