Five new phytoecdysteroids (1, 2, 3, 4, and 5) were isolated from Ajuga decumbens Thunb. planted at Pingtan island of Fujian Province. Their structures were elucidated by NMR(H NMR, C NMR, DEPT, HMBC, HSQC, H-H COSY, ROESY), and HRESIMS. Especially, compound 2 is the epimer of Cyasterone, which was directly confirmed using single crystal X-ray diffraction analysis.
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| http://dx.doi.org/10.1016/j.steroids.2022.109089 | DOI Listing |
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