In view of the great potential the quinazoline class of compounds offer, we started the synthesis and screening of a large number of new chemical entities with novel structural features. It has been surprisingly and unexpectedly found that quinazolines having 3- Ethynyl anilino group at the 4th position and specifically substituted alkoxy groups in the 6 and 7 positions, impart much enhanced and special anti-proliferative properties when compared to other prominent members of the quinazoline class of drugs. Also, surprisingly the compounds of this invention are much less toxic and the safety profile is exceedingly beneficial for therapeutic applications. The novel chemical entities described in this invention are designated by the general structure (I) and have not been synthesized earlier nor investigated for their therapeutic benefits and safety profile.; Compund (I) is NRC-2694, when structure (A).
鉴于
喹唑啉类化合物的巨大潜力,我们开始合成和筛选大量具有新结构特征的新
化学实体。我们出人意料地发现,与
喹唑啉类药物的其他主要成员相比,在第 4 位具有 3-
乙炔基
苯胺基团、在第 6 和第 7 位具有特定取代烷氧基基团的
喹唑啉类化合物具有更强、更特殊的抗增殖特性。此外,令人惊讶的是,本发明的化合物毒性更低,其安全性对治疗应用极为有利。本发明中所述的新型
化学实体以一般结构(I)表示,此前尚未合成,也未对其治疗效果和安全性进行研究。