A novel alkaloid from the seeds of L.

A new cytisine-type alkaloid, along with five known alkaloids was obtained from the seeds of . Their structures were determined to be (-)-N-(2'-hydroxy-3',5'-di-tert-butyl-toluene)-cytisine (), (-)-lupanine (), (+)-matrine (), (+)-sophoramine (), (+)-lehmannine () and (-)-sophocarpine (). Their structures were established by NMR, ECD and HRESIMS data analyses.

ent-Pimarane diterpenoids from Siegesbeckia glabrescens with anti-inflammatory activity.

Nine new ent-pimarane-type diterpenoids, siegesbeckia A-I (1-9), together with four known analogues ent-3α,15,16,19-tetrahydroxypimar-8(14)-ene (10), 15,16-dihydroxypimar-8(14)-en-3-one (11), 14β,16-epoxy-7-pimarene-3α,15β-diol (12) and darutigenol (13), were obtained from the aerial parts of Siegesbeckia glabrescens Makino. The structures of these compounds were elucidated by the interpretation of HRESIMS, 1D NMR and 2D NMR data. Their configurations were determined by ECD analysis and the structure of compound 1 was confirmed by X-ray crystallography.

Constituents from the Seeds of L.

Three new isoflavone glucosides, kudonol A-C (-), two new ester derivatives of phenylpropanoid, kudolignan A and B (-) and five known compounds, (-)-maackiain (), neoliquiritin (), methyl 4-coumarate (), methyl ferulate () and (+)-wikstromol (), were isolated from an extract of dried seeds of the traditional Chinese medicinal plant L. Their structures were established by NMR and HRESIMS data analyses. The monosaccharide part's configuration of isoflavone glucosides was confirmed by acid hydrolysis and analyzed by a JAsco OR-4090 chiral detector, comparing it to standard substance D-glucose.

Phytochemical and antitumor studies on (Maxim.) Kom.

A chemical investigation of (Maxim.) Kom. identified 8 compounds.