Application of Pd-Catalyzed C-H Alkylation Reaction in Total Syntheses of Twelve Amicoumacin-Type Natural Products

Autor: Gao-Feng Yin, Xiaodong Wang, Tao Shi, Hui-Hong Wang, Zhen Wang, Zhao Li, Yiyue Feng, Dian He
Rok vydání: 2021
Předmět:
Zdroj: Organic letters. 23(17)
ISSN: 1523-7052
Popis: Enantioselective total syntheses of 12 amicoumacin-type natural products are accomplished with a palladium(II)-catalyzed C-H alkylation as the key step to furnish the 3,4-dihydroisocoumarin scaffold. The target chemicals are assembled in a convergent protocol by merging 3,4-dihydroisocoumarin derived amine part with categories of acid segments that are efficiently prepared by chemoselective catalytic oxidation of chiral 1,2-dihydroxyethylfuran-2(5H)-ones. Afterward, the cytotoxicity of amicoumacins on five cancer cell lines and one normal cell line is investigated.
Databáze: OpenAIRE