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    • 4. 发明专利
    • IMPROVER FOR LIVER DISORDER
    • JPS63196513A
    • 1988-08-15
    • JP2799987
    • 1987-02-12
    • TSUMURA & CO
    • IKETANI YUKINOBUTAGUCHI HEIHACHIROYUDA MASAKISASAKI HIROMI
    • A61K31/09A61P1/16C07C43/23
    • PURPOSE:To obtain a remedy for liver disorder useful for treating liver diseases such as acute and chronic hepatitis, etc., containing lignan as an active ingredient. CONSTITUTION:The titled remedy containing lignan shown by formula I as an active ingredient. The compound is obtained by extracting Schizandrae fructus with a warm lower hydrocarbon (e.g. petroleum ether or N-hexane), distilling away the solvent of the extracted solution to give residue, dissolving the residue in water, subjecting to steam distillation, subjecting unpurified oil part from which a purified oil is removed to chromatography using silica gel, isolating a compound shown by formula II by developing with n-hexane, benzene, acetone or a mixed solvent thereof, reacting the compound shown by formula II in benzene by the use of lead tetracetate, subjecting to the reaction product to preparative thin-layer chromatography after the reaction and purifying. A dose of the compound is 5-80mg per adult daily by oral administration and 0.1-10mg daily by parentral administration and properly administered dividedly several time.