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A new iridoid compound from Patrinia rupestris (Pall.) Juss.
- Qiu, Dong-Feng, Yang, Xiu-Ping, Xu, Yang-Jun, Liu, Xiao-Qing, Liu, Hong-Li, Yuan, Cheng-Shan
- Natural product research 2011 v.25 no.17 pp. 1662-1665
- Patrinia, nuclear magnetic resonance spectroscopy, roots
- Extraction of roots of Patrinia rupestris (Pall.) Juss. gave a new iridoid compound, 1β,3α-diethyloxy-7-hydromethyl-4-(3-methyl-butyryloxymethyl)-cyclopenta-4(4a),7(7a)-diene[c]pyran-6-one (1), together with a known compound, (1α, 4aα, 6α, 7β, 7aα)-[4a, 5, 6, 7, 7a-hexahydro-6, 7-dihydroxy-1-(3-methyl-1-oxobutoxy) cyclopenta[c]pyran-4,7-diyl]bis(methylene) 3-methyl-butanoic acid ester (2). The structure of 1 was characterised by HRESIMS, IR, UV, 1-D NMR and 2-D NMR methods. Compound 2 was isolated from this genus for the first time.