Amine salt of lignan compound
AssigneeShionogi & Co., Ltd.
InventorShozo Takechi
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Abstract
The present invention provides an amine salt of a lignan compound, i.e., [1-O-[4-(3,4-dimethoxyphenyl)-2-(3- ethylpentanoyl)-5,6,7-trimethoxy-3- (methoxycarbonyl)naphthalen-1-yl]-beta-D- glucopyranoside]uronic acid, which is useful as a medicament. The present invention also provides a method for purifying said lignan compound.
Claims9
An amine salt of [1-O-[4-(3,4-dimethoxyphenyl)-2-(3-ethylpentanoyl)-5,6,7-trimethoxy-3-(methoxycarbonyl)naphthalen-1-yl]-beta-D-glucopyranoside]uronic acid.
A process for preparing [1-O-[4-(3,4-dimethoxyphenyl)-2-(3-ethylpentanoyl)-5,6,7-trimethoxy-3-(methoxycarbonyl)naphthalen-1-yl]-beta-D-glucopyranoside]uronic acid, which comprises purification thereof by transforming the acid into an crystalline amine salt.
A process for preparing [1-O-[4-(3,4-dimethoxyphenyl)-2-(3-ethylpentanoyl)-5,6,7-trimethoxy-3-(methoxycarbonyl)naphthalen-1-yl]-beta-D-glucopyranoside]uronic acid, which comprises a treatment of a crystalline amine salt thereof to form the free compound.
Dependencies are inferred from the claim text.