The reaction of 5-amino-1H-imidazoles with 3-methoxalylchromone provided a set of imidazo[4,5-b]pyridines (1-desazapurines) bearing the CO2Me substituent at the α-position of the pyridine core. The corresponding acids were synthesized by subsequent hydrolysis of the ester function. Being typical purine isosteres, 1-desazapurines are considered to be potent pharmacophores, and are widely used in drug design and medicinal chemistry.
5-amino-1H-imidazoles 与 3-methoxalylchromone 的反应产生了一组
咪唑并[4,5-b]
吡啶(1-desazapurines),其
吡啶核心的 δ 位带有 CO2Me 取代基。随后通过
水解
酯功能合成了相应的酸。作为典型的
嘌呤异构体,1-desazapurines 被认为是强效药亲和剂,广泛应用于药物设计和药物
化学。