Studies on the chemical synthesis of potential antimetabolites.<b>30.</b>Regioselective introduction of a chlorine atom into the imidazo[4,5-<i>b</i>]pyridine nucleus
作者:Tokuo Itoh、Kazuo Ono、Tomokazu Sugawara、Yoshihisa Mizuno
DOI:10.1002/jhet.5570190313
日期:1982.5
Reactions of some imidazo[4,5-b]pyridine 4-oxides with phosphoryl chloride are described. Treatment of N-1-substituted imidazo[4,5-b]pyridine 4-oxides with phosphoryl chloride led to the predominant formation of 7-chloro derivatives. This feature was successfully applied to the preparation of a chloroimidazo[4,5-b]pyridine nucleoside, which served as an important precursor of 1-deazaadenosine.
描述了一些咪唑并[4,5 - b ]吡啶4-氧化物与磷酰氯的反应。用磷酰氯处理N -1-取代的咪唑并[4,5- b ]吡啶4-氧化物导致主要形成7-氯衍生物。此功能已成功应用于氯咪唑并[4,5- b ]吡啶核苷的制备,它是1-deazaadenosine的重要前体。