Compound binding to pparg but not acting as promoter and pharmaceutical composition for treating pparg-related diseases containing same as active ingredient

A compound represented by formula 1 below, an optical isomer thereof, or a pharmaceutically acceptable salt thereof:

• wherein,
• R1 is H, unsubstituted or substituted C1-10 straight or branched alkyl wherein one or more halogens are substituted, or unsubstituted or substituted C1-10 straight or branched alkoxy wherein one or more halogens are substituted;
• R2 is unsubstituted or substituted C6-10 aryl, unsubstituted or substituted C6-10 aryl C1-10 straight or branched alkyl, or unsubstituted or substituted 5-membered heteroaryl containing one or more hetero atoms selected from the group consisting of N, O, and S;
• for the substituted C6-10 aryl, the substituted C6-10 aryl C1-10 straight or branched alkyl, and the substituted 5-10 membered heteroaryl, one or more substituents selected from the group consisting of C1-10 straight or branched alkyl unsubstituted or substituted with one or more halogens, C1-10 straight or branched alkoxy unsubstituted or substituted with one or more halogens, C1-10 straight or branched alkylsulfonyl unsubstituted or substituted with one or more halogens, C1-10 straight or branched alkoxycarbonyl, halogen, nitrile, and nitro can be substituted;
• for the said unsubstituted or substituted C6-10 aryl, phenyl or 5-8 membered heterocycloalkyl containing one or more hetero atoms selected from the group consisting of N, O, and S can be fused;
• R1 and R2 can form C5-10 cycloalkyl, 5-10 membered heterocycloalkyl containing one or more hetero atoms selected from the group consisting of N, O, and S, or 5-10 membered heteroaryl containing one or more hetero atoms selected from the group consisting of N, O, and S along with the carbon atoms which are conjugated to the same;
• for the said C5-10 cycloalkyl, the 5-10 membered heterocycloalkyl, or the 5-10 membered heteroaryl, phenyl can be fused;
• R3, R4, R5, and R6 are independently H, halogen, unsubstituted or substituted C1-10 straight or branched alkyl wherein one or more halogens are substituted, unsubstituted or substituted C1-10 straight or branched alkoxy wherein one or more halogens are substituted, or unsubstituted or substituted C6-10 aryl;
• for the said substituted C6-10 aryl, one or more substituents selected from the group consisting of halogen, unsubstituted or substituted C1-10 straight or branched alkyl wherein one or more halogens are substituted, hydroxycarbonyl, aminocarbonyl, and sodiumoxycarbonyl can be substituted;
• and
• A is —CH2— or —O—.