Indole compound decomposing ikzf2, and use thereof

A compound represented by the following Chemical Formula 1, a stereoisomer thereof, a solvate thereof, a prodrug thereof, or a pharmaceutically acceptable salt thereof;

• wherein,
• X is independently C, CH, N, or NR3:
• Y is —CH2— or —C(O)—;
• R1 is substituted by a hydrogen atom or C1-5 alkyl;
• R2 is substituted by a hydrogen atom, halogen, hydroxy, C1-6 alkyl, C1-6 alkoxy, haloC1-6 alkyl, haloC1-6 alkoxy, aldehyde, cyano, diC1-6 alkylaminoC1-6 alkyl, hydroxyC1-6 alkyl,
• R3 is independently substituted by a hydrogen atom, halogen, hydroxy, C1-6 alkyl, C1-6 alkoxy, haloC1-6 alkyl, haloC1-6 alkoxy, amino, nitro, cyano, diC1-6 alkylamino, —NHCOC1-6 alkyl, —NHCO aryl, —NHSO2C1-6 alkyl, —NHSO2 aryl, —NHCONHC1-6 alkyl, —NHCONH aryl,
• R4 is independently substituted by a hydrogen atom, halogen or hydroxy;
• A is substituted by
• R5 is substituted by a hydrogen atom, deuterium atom, halogen or hydroxy;
• R6 is substituted by a hydrogen atom or deuterium atom;
• R7 is substituted by a hydrogen atom, C1-5 alkyl or
• m is an integer of 1 to 3;
• and
• n is independently an integer of 0 or 1.