2-azolyl-6-piperidinylpurine derivatives was designed. Azolyl substituent at purine C-2 atom was introduced via nucleophilic aromatic substitution or in the case of tetrazolyl and 1,2,3-triazolyl substituents via a ring formation on a preinstalled amine or azide moiety, respectively. The obtained purine intermediates were functionalized at N-9 position using Mitsunobu reaction conditions to achieve amorphous compounds
设计了一种新型荧光 2-唑基-6-
哌啶基嘌呤衍
生物的合成。
嘌呤 C-2 原子上的唑基取代基是通过亲核芳香取代引入的,或者在
四唑基和
1,2,3-三唑基取代基的情况下,分别通过在预先安装的胺或
叠氮化物部分上形成环来引入。使用Mitsunobu反应条件将获得的
嘌呤中间体在N-9位官能化以获得无定形化合物,从而形成质量好的薄层膜。合成的推挽系统表现出荧光,发射范围为 360-400 nm,在 CH 2 Cl 2溶液中的量子产率高达 66%,在薄层膜中高达 45%。