Novel triterpenoids from the aerial roots of Ficus microcarpa |
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Authors: | Chiang Yi-Ming Kuo Yueh-Hsiung |
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Institution: | Department of Chemistry, National Taiwan University, Taipei, Republic of China. |
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Abstract: | Three novel triterpenoids, 3beta-acetoxy-11alpha-hydroxy-11(12-->13)abeooleanan-12-al (1), 3beta-hydroxy-20-oxo-29(20-->19)abeolupane (2), and 29,30-dinor-3beta-acetoxy-18,19-dioxo-18,19-secolupane (3), and the known 4, 5a, and 5b were isolated from the aerial roots of Ficus microcarpa. Their structures were elucidated on the basis of 2D NMR and X-ray diffraction experiments. Compound 1, derived from the oleanane skeleton, has an unusual five-membered C ring. Compounds 2 and 3, derived from the lupane skeleton, have unique skeletons that may arise from the same biogenetic pathway. |
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