https://orcid.org/0000-0003-4755-3828
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Abstract
Two new polycyclic polyprenylated acylphloroglucinols (PPAPs), hyperbeanins P-Q (1-2), and two new biosynthetic precursors, hyperbeanins R-S (3-4), were isolated from Hypericum beanii, together with three known analogs (5-7). Compound 1 was one of type A PPAPs featured with unusual bicyclo[5.3.1]hendecane core. The structures of isolates were established by NMR spectroscopic methods, experimental electronic circular dichroism (ECD) spectra and comparisons with known compounds. Compounds 5 and 6 showed obvious hepatoprotective activity at 10 µM against paracetamol-induced HepG2 cell damage.
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Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
The project was financially supported by Projects of International Cooperation and Exchanges NSFC (NSFC-VR, No. 81361138020), National Science and Technology Major Projects for "Major New Drugs Innovation and Development", Research and Development of New Drug Varieties from Natural Product Sources and Their Key Innovative Technological Systems (No. 2018ZX09711001-001-001 and 2018ZX09711001-001-003) and the CAMS Innovation Fund for Medical Sciences (CIFMS), the CAMS Initiative for Innovative Medicine (CAMS-I2M, No. 2016-I2M-1-010). Shenyang young and middle-aged talent project (RC210485).