Chemical constituents of Trachelospermum dunnii (H.Lév.) H.Lév.

Abstract Phytochemical investigation on the aerial parts of Trachelospermum dunnii led to the isolation and identification of 16 compounds, including nine dibenzylbutyrolactone lignans ( 1 – 9 ), two furanoid lignans ( 10 – 11 ), one dihydrobenzofuran lignan ( 12 ), one aryltetralin lignan ( 13 ), two flavonoids ( 14 – 15 ), and one phenolic compound ( 16 ). The structure of compound 1 was elucidated by means of spectroscopic analyses, including HRESIMS, and 1D and 2D NMR experiments. Compounds 1–16 are reported from title plant for the first time, while compounds 1 – 2 , 10 – 12 , and 14 – 16 have not been recorded previously in genus Trachelospermum . The dibenzylbutyrolactone lignans may serve as chemotaxonomic markers of T. dunnii .