5/24/2023 0 Comments Proton KeygenCompound 19 was isolated from the plants of the Tripterygium genus for the first time, and compounds 14– 17 were isolated from T. Compound 1 is the first abietane type diterpene with an 18→1 lactone ring. The structures of new compounds were characterized by means of the interpretation of high-resolution electrospray ionization mass spectrometry (HRESIMS), extensive nuclear magnetic resonance (NMR) spectroscopic data and comparisons of their experimental CD spectra with calculated electronic circular dichroism (ECD) spectra. ![]() Eleven new abietane type ( 1‒ 11), and one new kaurane ( 12), diterpenes, together with eleven known compounds ( 13– 23), were isolated and identified from the stems of Tripterygium regelii, which has been used as a traditional folk Chinese medicine for the treatment of rheumatoid arthritis in China.
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