Potential antitumor agents. 61. Structure-activity relationships for in vivo colon 38 activity among disubstituted 9-oxo-9H-xanthene-4-acetic acids
作者:Gordon W. Rewcastle、Graham J. Atwell、Li Zhuang、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm00105a034
日期:1991.1
Analogues of 9-oxo-9H-xanthene-4-acetic acid (XAA) bearing small, lipophilic 5-substituents are among the most dose-potent compounds yet reported with the capability of causing hemorrhagic necrosis of implanted colon 38 tumors in mice. To further extend structure-activity relationships among this class of compound, a series of XAA derivatives bearing two small lipophilic groups at various positions
带有小的,亲脂性的5个取代基的9-氧代9H-氧杂蒽-4-乙酸(XAA)的类似物是迄今已报道的最强剂量化合物,具有引起小鼠植入的结肠38肿瘤出血性坏死的能力。为了进一步扩展这类化合物之间的构效关系,已经制备并评估了一系列在不同位置带有两个小的亲脂基团的XAA衍生物。特别是5,6-二取代的化合物始终显示出高水平的剂量效力和活性,这表明这是取代的9-氧代-9H-氧杂蒽-4-乙酸中的最佳构型。5,6-二甲基和5-甲基-6-甲氧基是最有效的类似物,