Three New Ionone Glycosides from Rhododendron capitatum Maxim
Jun-Ren Yang,
Yue-Tong Zhu,
Yi-Qin Zeng
et al.
Abstract:Six ionone glycosides (1–3 and 5–7), including three new ones, named capitsesqsides A−C (1–3), together with an eudesmane sesquiterpenoid glycoside (4) and three known triterpenoid saponins (8–10) were isolated from Rhododendron capitatum. The structures of these compounds were determined by extensive spectroscopic techniques (MS, UV, 1D-NMR, and 2D-NMR) and comparison with data reported in the literature. The absolute configurations were determined by comparison of the experimental and theoretically calculate… Show more
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