AbstractIn the current study a facile synthetic route for preparing antineoplastic drug GDC-0449 is investigated. Starting with pyridine-1-oxide and 1-iodo-3-nitrobenzene, the intermediate product 2-(2-chloro-5-nitrophenyl) pyridine was prepared by cross-coupling, deoxidation and halogenation. The final compound was then synthesised by reduction of the nitro group followed by amidation. This synthetic route avoids the use of unstable organometallic or organic boride compounds; it employs relatively inexpensive and bench-stable reagents, involves readily controllable reaction conditions, and achieves a relatively high yield.
在当前研究中,探讨了一种用于制备抗肿瘤药物GDC-0449的简便合成路线。从吡啶-1-氧化物和1-碘-3-硝基苯开始,通过交叉偶联、脱氧和卤代反应制备了中间产物2-(2-氯-5-硝基苯基)吡啶。然后通过还原硝基团和酰胺化合成了最终化合物。这种合成路线避免了使用不稳定的有机金属化合物或有机硼化合物;它采用相对廉价和台面稳定的试剂,涉及易于控制的反应条件,并实现了相对较高的产率。