New iridoids from Lyonia ovalifolia and their anti-hyperglycemic effects in mice pancreatic islets

Phytochemical investigation on the aerial parts of Lyonia ovalifolia (Wall.) Drude led to the isolation of three new iridoids, lyonofolin A (1), lyonofolin B (2), and lyonofolin C (3), and a known iridoid, gelsemiol (4). Structures of compounds 1–4 were determined by extensive spectroscopic analyses...

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