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ID: ALA1130723

Journal: Bioorg Med Chem Lett

Title: Synthesis and guanase inhibition studies of a novel ring-expanded purine analogue containing a 5:7-fused, planar, aromatic heterocyclic ring system.

Authors: Rajappan V, Hosmane RS.

Abstract: 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 competitive inhibitor of the enzyme with a Ki of 2.27 +/- 0.66 x 10(-4) M.

CiteXplore: 9934488

DOI: 10.1016/s0960-894x(98)00672-6