Synthesis and guanase inhibition studies of a novel ring-expanded purine analogue containing a 5:7-fused, planar, aromatic heterocyclic ring system
作者:Vasanthakumar Rajappan、Ramachandra S. Hosmane
DOI:10.1016/s0960-894x(98)00672-6
日期:1998.12
The synthesis of a novel planar, potentially aromatic, ring-expanded xanthine analogue (1), containing the 5:7-fused imidazo[4,5-e][1,4]diazepine ring system, along with guanase inhibition studies are reported. The compound was synthesized in six steps, starting from 1-benzyl-5-nitroimidazole-4-carboxylic acid (2), and was biochemically screened against rabbit liver guanase. Compound 1 is a moderate
据报道,含有5:7稠合的咪唑并[4,5-e] [1,4]二氮杂ring环系统的新型平面的,可能为芳香族的,扩环的黄嘌呤类似物(1)的合成,以及鸟苷酶的抑制研究。该化合物从1-苄基-5-硝基咪唑-4-羧酸(2)开始,通过六个步骤合成,并针对兔肝鸟苷酶进行了生化筛选。化合物1是该酶的中等竞争性抑制剂,Ki为2.27 +/- 0.66 x 10(-4)M。