Cyclisation of 7-Deazaxanthine-9-propionic Acid to an Active-Site-Directed, Irreversibly Acting Inhibitor of Xanthine Oxidase
作者:Helmut Rosemeyer、Uwe Kretschmer、Frank Seela
DOI:10.1002/hlca.19850680811
日期:1985.12.18
carbodiimide resulted in an intramolecular acylation at N(3) with formation of the tricyclic compound 5. Compound 5 - bearing a reactive lactam ring - is an active-site-directed, irreversibly acting inhibitor of xanthine oxidase from cow's milk.
用3-溴丙酸乙酯对2,4-二甲氧基-7 H-吡咯并[2,3- d ]嘧啶(2)进行相转移烷基化,从而选择性地将乙基2-3-3-二甲氧基-7 H-吡咯并[2,3-] d ]嘧啶-7-丙酸酯(3a)。皂化和醚裂解后,获得官能化的7-脱氮黄嘌呤4b。的反应4B用H 2 O形水溶性碳化二亚胺导致在N(3)与地层三环化合物的分子内酰化5。化合物5 -带有反应性内酰胺环-是活性定点的,不可逆地作用于牛奶中的黄嘌呤氧化酶抑制剂。