taepeenin D. First, we demonstrated alkoxy radical-mediated selective functionalization at C19 methyl group for construction of the C4 quaternary carbon stereogenic center. Second, the CD benzofuran rings were constructed in 6 short steps from decalone. The synthesis described herein is not only applicable to total synthesis, but also used for study of the structure–activity relationships of taepeenin D.
Taepeenin d是从根分离的meroterpenoid和茎的云实嵴,表示Hedgehog信号通路的抑制活性。在本文中,我们报道了taepeenin D的两个片段的选择性和短期构建。首先,我们证明了在C19甲基处烷氧基自由基介导的选择性功能化,用于构建C4季碳立体异构中心。其次,CD
苯并呋喃环是从十倍体构建而成,仅需短短6步。本文所述的合成不仅适用于全合成,还用于研究taepeenin D的构效关系。