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Hypoglycemic diterpenoids from Tinospora crispa.
Intraperitoneal injection of 4 and 6 showed significant lowering of plasma glucose levels in normal and streptozotocin-induced type 1 diabetic mice, accounting for the hypoglycemic effect of borapetoside C.
Chemical investigation of Phyllanthus reticulatus by HPLC-SPE-NMR and conventional methods.
This study demonstrates that HPLC-SPE-NMR is very useful for thorough chemical investigation and also offers the advantages of saving time, plant materials and consumables over more conventional methods.
Rapid screening of lignans from Phyllanthus myrtifolius and stilbenoids from Syagrus romanzoffiana by HPLC-SPE-NMR.
HPLC-SPE-NMR associated with HR-ESI/MS, which consumed only analytical amounts of partially purified mixtures, was demonstrated to be a good tool for rapid screening of both known and new natural products.
Investigation of Flavonoid Glycosides from Neolitsea Sericea var. Aurata via the General Method and HPLC‐SPE‐NMR
Six flavonoid rhamnosides(1-2,4-7) wereseparated fromthewater-solublenon-alkaloidalportion of the EtOH extract of the leaves ofNeolitsea sericea var. auratausing various chromatographic techniques
Chemical Constituents of Vigna luteola and Their Anti-inflammatory Bioactivity
Seventy-three compounds were identified from the methanol extract of V. luteola, and among these, three new (1–3) were characterized by spectroscopic and mass spectrometric analyses. The isolated