Osteoclast-forming suppressing compounds, gargalols A, B, and C, from the edible mushroom Grifola gargal

Three novel sterols, gargalols A–C (1–3), and four known ones were isolated from the edible mushroom Grifola gargal. The structures of 1–7 were determined or identified by the interpretation of spectroscopic data. Compounds 1–5 suppressed the formation of osteoclast without toxicity.

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