ABSTRACT
OBJECTIVE: Isolation and structural elucidation of the constituents of China mangrove Sonneratia apetala. METHOD: chromatography methods were used for isolation of compounds, spectroscopic methods were used for structural identifyication. RESULT: seven known compounds named (+/-) symgaresinol, betulinic acid, lupeol, lupeone, stigmast-5-ene-3beta, 7alpha-diol, beta-alpha myrin hexadecaneate, physcoion were isolated. CONCLUSION: these known compouns were unreported previously from this plant.
Subject(s)
Magnoliopsida/chemistry , Plants, Medicinal/chemistry , Triterpenes/isolation & purification , Pentacyclic Triterpenes , Triterpenes/chemistry , Betulinic AcidABSTRACT
OBJECTIVE: To investigate the chemical constituents from the rhizomes of Smilax glabra. METHOD: The compounds were isolated by column chromatography with silica gel, Diaion HP-20 and ODS as packing materials, and HPLC. Their structures were determined on the basis of their spectral evidence. RESULT: 5 dihydro-flavonol glycosides were identified as: astilbin (1), neoastilbin (2), isoastilbin (3), neoisoastilbin (4), (2R, 3R)-taxifolin-3'-O-beta-D-pyranglucoside (5). CONCLUSION: Compounds 2, 4, 5 were isolated from this plant for the first time.
