Synthetic studies on pseudolaric acid B: Construction of the trans-fused [5–7] ring system via Dieckmann condensation
作者:Naoki Mori、Chiaki Mase、Hidenori Watanabe、Hirosato Takikawa
DOI:10.1016/j.tetlet.2018.05.069
日期:2018.6
Pseudolaric acids A (1) and B (2) are diterpene acids isolated from the root bark of Pseudolarix kaempferi as the main biologically active constituents of tujinpi, a traditional Chinese medicinal herb. Studies toward the total synthesis of 2 are described. The unusual trans-fused [5–7] ring system in the core structure of 2 was successfully synthesized via Dieckmann condensation.
伪laric酸A(1)和B(2)是从Pseudolarix kaempferi根皮中分离出的二萜酸,是传统中草药土金pi的主要生物活性成分。描述了对2的总合成的研究。通过Dieckmann缩合成功地合成了2的核心结构中不寻常的反式[5-7]环系统。