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Castanolide and epi-castanolide, two novel diterpenoids with a unique seco-norabietane skeleton from Salviacastanea Diels f. pubescens Stib. |
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| Authors: | Zheng-Hong Pan Juan He Yu Zhao Kou Wang Gang Xu |
| Institution: | a State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, PR China b Guangxi Institute of Botany, Chinese Academy of Science, Guilin 541006, PR China c Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China |
| Abstract: | Castanolide (1) and epi-castanolide (2), two novel diterpenoids possessing a unique seco-norabietane skeleton, were isolated from Salviacastanea Diels f. pubescens Stib. Their structures and relative stereochemistry were elucidated by extensive NMR analysis and confirmed by single-crystal X-ray diffraction study. A possible biosynthetic pathway of these two compounds was also proposed. |
| Keywords: | Salviacastanea Diels f pubescens Stib Diterpenoid Castanolide epi-Castanolide |
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