Abstract
AbstractTwo new tirucallane‐type triterpenoids, (24Z)‐tirucalla‐7,24‐diene‐3β,11β,26‐triol (1) and (3S,24R)‐tirucall‐7‐ene‐3,24,25‐triol (2), along with the known compound celastrol (3), were isolated from the root barks of Celastrus stylosus Wall. The structures of 1–3 were established by spectroscopic methods, including extensive 2D NMR and MS analyses. It is the first report on tirucallane‐type triterpenoids from the genus Celastrus and may be of vital chemotaxonomic significance.
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