Antitumor 1-(X-aryl)-3,3-dialkyltriazenes. 1. Quantitative structure-activity relationships vs. L1210 leukemia in mice.

Quantitative structure-activity relationships (QSAR) have been formulated for phenyl-, pyrazolyl-, and imidazolyltriazenes acting L1210 leukemia in mice. All three sets of congeners have the same ideal lipophilicity (log Po approximately 1). Electron releasing substituents increase potency; ortho substitution decreases activity. The synthesis of a number of new triazenes and some of their partition coefficients are reported.