Terpenoids from Loxocalyx urticifolius |
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| Authors: | Dahai He Xuemin Xu Yan Zhou Wenlong Deng Bin Xia Lisheng Ding |
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| Institution: | 1. Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.?R. China);2. Sichuan Key Laboratory of Quality and Innovation Research of Chinese Materia Medica, Sichuan Academy of Chinese Medicine Sciences, Chengdu 610041, P.?R. China |
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| Abstract: | Two new diterpenoids, loxocalyxin A ( 1 ) and 13‐epiloxocalyxin A ( 2 ), and two new sesquiterpenoids, loxocalyxins B and C ( 3 and 4 , resp.), together with three known compounds, were isolated from the MeOH extract of the whole plant of Loxocalyx urticifolius Hemsl . The structures of the new compounds were established by means of spectroscopic analysis including one‐ and two‐dimensional NMR spectroscopy. All new structures were confirmed by X‐ray crystallographic analysis. Their absolute configurations were established. |
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| Keywords: | Loxocalyx urticifolius Diterpenoids Sesquiterpenoids Loxocalyxins A – C 13‐Epiloxocalyxin A X‐Ray crystallography |
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