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Updated: May 1, 2026
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
New acylphloroglucinol derivatives with diverse architectures from Hypericum henryi
Xing-Wei Yang1, Yuanqing Ding, Jing-Jing Zhang
1State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201, Yunnan P. R. China.
Abstract:
Hyphenrones A-F (1-6), six polycyclic polyprenylated acylphloroglucinol derivatives with four architectures including three unprecedented cores as exemplified by 1, 3, and 4, were isolated from Hypericum henryi. Compounds 3 and 4 possess two unique 5/8/5 and 6/6/5/8/5 fused ring systems, respectively. Their absolute configurations were defined by experimental and calculated ECD of 4 and X-ray diffractions of 5 and 6, coupled with their putative biosynthetic origins. Three compounds exhibited interesting AChE inhibitory activities.
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