Scalable, Divergent Synthesis of Meroterpenoids via “Borono-sclareolide”
摘要:
A scalable, divergent synthesis of bioactive meroterpenoids has been developed. A key component of this work is the invention of "borono-sclareolide", a terpenyl radical precursor that enables gram-scale preparation of (+)-chromazonarol. Subsequent synthetic operations on this key intermediate permit rapid access to a variety of related meroterpenoids, many of which possess important biological activity.
Total Synthesis of Indotertine A and Drimentines A, F, and G
作者:Yu Sun、Ruofan Li、Wenhao Zhang、Ang Li
DOI:10.1002/anie.201303334
日期:2013.8.26
Oh my darling, Drimentine: The first totalsynthesis of the pyrroloindoline alkaloids drimentines A, F, and G, and their congener, indotertine A, is reported. An intermolecular radical conjugate addition was key in the synthesis of the drimentine alkaloids, and a biologically inspired iminium–olefin cyclization converted drimentineF into indotertine A.
Regioselective 1,2-Diol Rearrangement by Controlling the Loading of BF<sub>3</sub>·Et<sub>2</sub>O and Its Application to the Synthesis of Related Nor-Sesquiterene- and Sesquiterene-Type Marine Natural Products
achieved by controlling the loading of BF3·Et2O. Its applicability is showcased by the divergent synthesis of austrodoral, austrodoric acid, and 8-epi-11-nordriman-9-one, as well as a formal synthesis of siphonodictyal B and liphagal. A new light is shed on piancol-type rearrangements that will be useful in diversity-oriented synthesis of related natural products.
“Carbon Assimilation” Inspired Design and Divergent Synthesis of Drimane Meroterpenoid Mimics as Novel Fungicidal Leads
作者:Shasha Zhang、Dangdang Li、Zehua Song、Chuanli Zang、Lu Zhang、Xiushi Song、Shengkun Li
DOI:10.1021/acs.jafc.7b03126
日期:2017.10.18
challenging coupling reaction (“1 + 1” tactic), “carbon assimilation” was conceived and used for the rapid construction of drimanyl meroterpenoid mimics, in which the newly formed covalent bond was directly from the old one of the drimanyl subunit (“2 + 0” tactic), which features atom economy, step economy, and facile preparation. The accompanying introduction of versatile heterocycles and application of