Two new isoflavone glucosides, irisolone 4'-O-[O-β-d-glucopyranosyl-(1→6)-O-β-d-glucopyranosyl-(1→6)-β-d-glucopyranoside] (1) and iriskashmirianin 4'-O-[O-β-d-glucopyranosyl-(1→6)-O-β-d-glucopyranosyl-(1→6)-β-d-glucopyranoside] (2) were isolated from the underground parts of Iris florentina (Iridaceae). The structures of 1 and 2 were determined based on extensive spectroscopic data analyses and hydrolytic cleavage results. The isoflavone derivatives previously isolated from this plant were evaluated for their ability to inhibit the formation of advanced glycation end products.
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