The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I). The invention additionally relates to a process for preparing a compound of formula (III) using the compound of formula (I) as an intermediate, wherein the process involves elimination of the R3(X)nC(O)O functional group of the compound of formula (I).

The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I). The invention additionally relates to a process for preparing a compound of formula (III) using the compound of formula (I) as an intermediate, wherein the process involves elimination of the R3(X)nC(O)O functional group of the compound of formula (I).

It is an object of the present invention to provide a novel means for purifying bisacurone from turmeric at low costs and in a high concentration.

A method of producing a bisacurone-containing turmeric extract, comprising a stepwise extraction step of using a plurality of extraction solvents each having different polarity by combining them with one another in a predetermined order.

It is an object of the present invention to provide a novel means for purifying bisacurone from turmeric at low costs and in a high concentration.

A method of producing a bisacurone-containing turmeric extract, comprising a stepwise extraction step of using a plurality of extraction solvents each having different polarity by combining them with one another in a predetermined order.

It is an object of the present invention to provide a novel means for purifying bisacurone from turmeric at low costs and in a high concentration.

A method of producing a bisacurone-containing turmeric extract, comprising a stepwise extraction step of using a plurality of extraction solvents each having different polarity by combining them with one another in a predetermined order.

It is an object of the present invention to provide a composition having an anti-inflammatory action.

The anti-inflammatory composition of the present invention comprises, as an active ingredient, a compound represented by the following Formula 1. In the following Formula 1, R.sub.1 represents hydrogen or a hydroxy group, and A represents a phenyl group optionally substituted with a hydroxyl group or a methyl group, or a cyclohexenyl group substituted with a hydroxyl group and a methylene group.

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It is an object of the present invention to provide a composition having an anti-inflammatory action.

The anti-inflammatory composition of the present invention comprises, as an active ingredient, a compound represented by the following Formula 1. In the following Formula 1, R.sub.1 represents hydrogen or a hydroxy group, and A represents a phenyl group optionally substituted with a hydroxyl group or a methyl group, or a cyclohexenyl group substituted with a hydroxyl group and a methylene group.

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The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I) which could be used as a novel intermediate in the process for the preparation of compound of formula (III).

The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I) which could be used as a novel intermediate in the process for the preparation of compound of formula (III).

The present invention relates to compound of formula (I) or a stereoisomer thereof, in particular amarouciaxanthin A acetate. The invention also relates to the method of preparation of these compounds, to compositions comprising them as well as their medical and cosmetic uses.

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