Halogeno, sulfato, and nitrato Pt (II) complexes of 2, 3-diaminopropanol (pnOH) isomers were synthesized and their antitumor activities against leukemia L1210 were tested. The conformations of their chelate rings were determined to be λ-and δ-gauche forms for R- and S-pnOH, respectively, by 13C-nuclear magnetic resonance and circular dichroism spectral analyses. Among the pnOH isomers, Pt (II) complexes containing R-pnOH showed higher antitumor activity than those containing S- or racemic pnOH. It seems that there may be a relationship between the conformations of the chelate rings and antitumor activity in the case of five-membered chelate rings.
合成了 2,3-二
氨基
丙醇(pnOH)异构体的卤代、
硫代和硝代
铂(II)配合物,并测试了它们对白血病 L1210 的抗肿瘤活性。通过 13C 核磁共振和圆二色光谱分析,确定其螯合环的构象分别为 R-pnOH 和 S-pnOH 的 λ 和 δ 高切形式。在 pnOH 异构体中,含有 R-pnOH 的 Pt (II) 复合物比含有 S- 或外消旋 pnOH 的复合物具有更高的抗肿瘤活性。五元螯合环的螯合环构象与抗肿瘤活性之间似乎存在某种关系。