In memory of Prof. Dr. Rolf Huisgen

Abstract

An enantioselective hetero-Diels–Alder reaction of alkylidene­ oxindoles and 2-aza-3-silyloxy-1,3-butadienes, catalyzed by divalent transition metal complexes with N,N′-dioxide ligands offered an efficient access to natural-product-based 3,3′-piperidinoyl spiroox­indole class of small molecules. exo-Cycloadducts formed via stereospecific cycloaddition with Z-olefin displayed potent activity in modulation of hedgehog pathway.

中文翻译：

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3,3'-哌啶基螺氧杂吲哚的不对称合成和作为新的Hedgehog通路调节剂的立体特异性Cycloadducts的发现

纪念Rolf Huisgen教授

抽象

亚烷基吲哚和2-氮杂-3-甲硅烷氧基-1,3-丁二烯的对映选择性杂Diels-Alder反应，由具有N，N'-二氧化物配体的二价过渡金属配合物催化，可有效地获得基于天然产物的3,3'-哌啶子基螺氧基吲哚类小分子。通过立体特异性环加成反应与Z-烯烃形成的exo-环加合物在刺猬信号通路的调节中显示出强大的活性。