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Phytochemical studies on the whole herb of Sphaerophysa salsula has resulted in the discovery of one new 8-isopentenyl isoflavone derivative, named sphaerosin s2 (3-(8-(2-hydroxypropan-2-yl)-3,4-dihydro-2H-furo[2,3-h]chromen-3-yl)-2,6-dimethoxyphenol) (1), along with four know 8-isopentenyl isoflavone derivatives (2-5). Compounds (2, 4 and 5) were isolated for the first time from this species. Their structures were elucidated on the basis of ESI-MS, UV, IR, 1D NMR and 2D NMR data.
<br>Display Omitted<br>• Two new stilbenoid derivatives were isolated from <b>Sphaerophysa salsula</b>. • One compound were isolated for the first time from this species. • Eight known compounds were isolated from the plant. • These compounds enriched the structural types of natural products from <b>Sphaerophysa salsula</b>.<br>Two new compounds, gnetuhainins Fa (<b>1</b>) and cassigarols Ea (<b>2</b>), were isolated from the whole herb of <b>Sphaerophysa salsula</b> along with eight known compounds (<b>3</b>-<b>10</b>). The compounds (<b>4</b>) were isolated for the first time from this species. Their structures were elucidated by ESI-MS, UV, IR, 1D NMR and 2D NMR data.