A New Pentacyclic Triterpene from Ecdysanthera Rosea

摘要

AbstractD‐friedours‐14‐en‐11α, 12α‐epoxy‐3β‐yl palmitate (1), a new pentacyclic triterpene of the ursane series, was isolated from the aerial parts ofEcdysanthera rosea, and the structure was elucidated on the basis of the spectral data. The partial synthesis of this compound from α‐amyrin acetate via a few step