A compound, represented by Formula (1): where X represents an isopropyl group or a t-butyl group, and R represents a linear, branched, or cyclic alkyl group having 1 to 5 carbon atoms; provided that one where X is an isopropyl group, and R is a t-butyl group is excluded. ##STR00001##

The present invention relates to novel pharmaceutically acceptable salts of Bempedoic acid, novel intermediates of Bempedoic acid, novel crystalline form of Bempedoic acid and novel processes for the preparation of Bempedoic acid or its intermediates thereof.

The present invention relates to novel pharmaceutically acceptable salts of Bempedoic acid, novel intermediates of Bempedoic acid, novel crystalline form of Bempedoic acid and novel processes for the preparation of Bempedoic acid or its intermediates thereof.

It is an object of the present invention to provide an unsaturated group-containing ester compound which can be used as a raw material of a curable composition using transesterification reaction and which is inexpensive and has a good curability, and a polymer, a thermosetting resin composition, and a curable composition which containing the unsaturated group-containing ester compound, respectively. An unsaturated group-containing ester compound having a chemical structure represented by the following general formula (1): ##STR00001## n.sub.1: 1 to 10 (in the formula, R.sub.1, R.sub.2, and R.sub.3 are the same or different and each is a hydrogen, an alkyl group, a carboxyl group, an alkyl ester group or a structure represented by R.sub.4-[COOR.sub.5]n.sub.1; R.sub.4 is an aliphatic, an alicyclic or an aromatic alkylene group with a number of atoms of 50 or less in the main chain, which may have one or more functional groups selected from the group consisting of an ester group, an ether group, an amide group, and a urethane and may have a side chain; R.sub.5 is an alkyl group having 50 or less carbon atoms; and in the compound represented by the general formula (1), the R.sub.4-[COOR.sub.5] group may be a lactone structure represented by the following general formula (1-1). ##STR00002## (R.sub.x is a hydrocarbon group having 2 to 10 carbon atoms which may have a branched chain.

It is an object of the present invention to provide an unsaturated group-containing ester compound which can be used as a raw material of a curable composition using transesterification reaction and which is inexpensive and has a good curability, and a polymer, a thermosetting resin composition, and a curable composition which containing the unsaturated group-containing ester compound, respectively. An unsaturated group-containing ester compound having a chemical structure represented by the following general formula (1): ##STR00001## n.sub.1: 1 to 10 (in the formula, R.sub.1, R.sub.2, and R.sub.3 are the same or different and each is a hydrogen, an alkyl group, a carboxyl group, an alkyl ester group or a structure represented by R.sub.4-[COOR.sub.5]n.sub.1; R.sub.4 is an aliphatic, an alicyclic or an aromatic alkylene group with a number of atoms of 50 or less in the main chain, which may have one or more functional groups selected from the group consisting of an ester group, an ether group, an amide group, and a urethane and may have a side chain; R.sub.5 is an alkyl group having 50 or less carbon atoms; and in the compound represented by the general formula (1), the R.sub.4-[COOR.sub.5] group may be a lactone structure represented by the following general formula (1-1). ##STR00002## (R.sub.x is a hydrocarbon group having 2 to 10 carbon atoms which may have a branched chain.

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:

##STR00001## wherein, in Formula (1), R.sup.1 represents a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms.

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:

##STR00001##

wherein, in Formula (1), R.sup.1 represents a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms.

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:

##STR00001##

wherein, in Formula (1), R.sup.1 represents a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms.

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:

##STR00001##

wherein, in Formula (1), R.sup.1 represents a linear, branched, or cyclic alkyl group having 1 to 5 carbon atoms.

A compound, represented by Formula (1): where X represents an isopropyl group or a t-butyl group, and R represents a linear, branched, or cyclic alkyl group having 1 to 5 carbon atoms; provided that one where X is an isopropyl group, and R is a t-butyl group is excluded.

##STR00001##