The structure activity relationship (SAR) in the anti-cancer activities of pyrazolo[1, 5-a]indole derivatives was investigated, and the following conclusions were obtained : 1) N(1)-quaternarization is essential for anti-cancer activity, 2) the size and polarity of the 2-substituent is crucial for in vitro activity which allows further investigation in an in vivo test, 3) the effect of the 4-substituent on the activity is minor compared with the other two factors.
研究了
吡唑并[1,5-a]
吲哚衍
生物抗癌活性的结构活性关系(
SAR),得出以下结论:1)N(1)-季
铵盐化对抗癌活性至关重要;2)2-取代基的大小和极性对体外活性至关重要,因此可以在体内试验中进一步研究;3)与其他两个因素相比,4-取代基对活性的影响较小。