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Secoiridoid Glycoside and Alkaloid Constituents of Hydrangea chinensis

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journal contribution
posted on 20.08.2003, 00:00 by Fang-Rong Chang, Yue-Han Lee, Yu-Liang Yang, Pei-Wen Hsieh, Ashraf T. Khalil, Chung-Yi Chen, Yang-Chang Wu
A new secoiridoid glycoside, hydrachoside A (1), along with 14 known compounds, was isolated from the leaves of Hydrangea chinensis. The absolute stereochemistry of the side chain attached to C-15 on the secoiridoid glycoside hydrangenoside E (2) was determined by NMR spectral analysis. The structures of compounds 1 and 2 were elucidated on the basis of spectral data. The previously reported structure, hydrachine A (3), was revised as its epimer, (−)-neodichroine (4), a new compound.