Synthesis of C-β-d-glucopyranosyl derivatives of some fused azoles for the inhibition of glycogen phosphorylase
作者:Eszter Szennyes、Éva Bokor、Tibor Docsa、Ádám Sipos、László Somsák
DOI:10.1016/j.carres.2018.11.003
日期:2019.1
Annulated C-β-d-glucopyranosyl heterocycles were synthesized and tested as inhibitors of glycogen phosphorylase. 2-(β-d-Glucopyranosyl)-1H-imidazo[4,5-b]pyridine was formed by ring-closure of O-perbenzoylated C-β-d-glucopyranosyl formic acid with 2,3-diaminopyridine in the presence of triphenylphosphite. Cyclisations of bromomethyl 2,3,4,6-tetra-O-benzoyl-β-d-glucopyranosyl ketone with a set of 2-aminoheterocycles
合成环状的C-β-d-吡喃葡萄糖基杂环并作为糖原磷酸化酶的抑制剂进行测试。2-(β-d-Glucopyranosyl)-1H-咪唑并[4,5-b]吡啶是通过在2,3-二氨基吡啶存在下将O-过苯甲酰化的C-β-d-吡喃葡萄糖基甲酸与2,3-二氨基吡啶闭环而形成的亚磷酸三苯酯。溴甲基2,3,4,6-四-O-苯甲酰基-β-d-吡喃葡萄糖基酮与一组2-氨基杂环基环化导致C-β-d-吡喃葡萄糖基咪唑与吡啶,嘧啶,噻唑, 1,3,4-噻二唑,苯并噻唑和苯并咪唑 通过标准的酯交换作用将上述化合物的O-去苯甲酰化,得到测试化合物。1H-咪唑并[4,5-b]吡啶被证明是兔肌肉糖原磷酸化酶b的低微摩尔抑制剂(Ki = 21.1μM),