Phytochemical Profiling and Isolation of Bioactive Compounds from (Rosaceae).

In the study, ultraperformance liquid chromatography-quadrupole time-of-flight-mass spectrometry analysis of leaf and stem extracts led to the identification of various classes of compounds. Further chromatographic purifications resulted in the isolation of 22 compounds that consisted of a new triterpenoid named leucosidic acid A (), an acetophenone derivative , a phloroglucinol derivative , three chromones , seven pentacyclic triterpenoids , a phytosterol glucoside , a flavonoid , and seven flavonoid glycosides . Nineteen of these compounds including the previously undescribed triterpenoid are isolated for the first time from .

Bioactive Lignans from .

Phytochemical investigation of extracts of the stems of led to the isolation of nine lignans that included four known compounds, namely, hinokinin (), savinin (), medioresinol (), and two cubebins (,), three new butyrolactone lignans (-), and butyrolactol lignans -. The structures of the new compounds were established using 1D and 2D NMR and HRESIMS data. The absolute configurations of the new lignans were determined from their ECD data and the Mosher's ester method.