STUDIES ON CHEMICAL CONSTITUENTS OF VERONICALINA RIIFOLIA PALL.EX LINK.SUB.DILATATA (NAKAI ET KITAGAWA) HONG.

A new flavonoid glycoside, named linariifolioside, C₂₉H₃₂O₁₇ with mp at 232～234℃ (dec.), was isolated from the alcohol extract of the dried whole herb of Veronica linariifoliaPall. ex Link sub. dilatata (Nakai et Kitagawa) Hong. Based on spactral (IR, UV, ¹HNMR, ¹³CNMR and FAB-MS) analysis and hydrolysis products its structure was identified as luteolin-7-O-6″′- O-acetyl-β-D-glucosyl-(1→2)-β-D-glucoside (Ⅰ).In addition, four known compounds, luteolin-7-O-β-D-glucosyl-(1→2)-β-D-glucoside(Ⅱ), apigenin-7-O-α-L-rhamnoside (Ⅲ), luteolin(Ⅳ), and apigenin (Ⅴ) were isolated from the same fraction and identified. These compounds were obtained for the first time from this plant.