Structural diversity of bioactive triterpenoids from Alangium salviifolium and their attenuation of acute lung injury through AKT/MAPK signaling.
Seventeen undescribed triterpenoids, comprising three structural types-protostanes (1-5), multifloranes (6-8), and oleanane analogs (10-18), along with eight known compounds (9, and 19-25), were isolated from the leaves of Alangium salviifolium, a plant of the genus Alangium (family Cornaceae). Their structures were el...