Tricyclic tetrahydroisoquinoline derivative, preparation method therefor and application thereof in medicine

A compound of general formula (IA) or a tautomer, mesomer, racemate, enantiomer or diastereomer thereof or a mixture thereof, or a pharmaceutically acceptable salt thereof

• wherein:
• R1a and R1b are identical or different and are each independently selected from the group consisting of H atom, deuterium atom, halogen, alkyl, deuterated alkyl, haloalkyl, alkoxy, hydroxy, hydroxyalkyl, cyano, amino, nitro, carboxyl, aldehyde, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• X is Br;
• G1, G2, G3 and G4 are identical or different and are each independently CR8 or a N atom;
• R2 are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, haloalkyl, hydroxyalkyl, alkoxy, cyano, amino, nitro, carboxyl, aldehyde, hydroxy, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R3 is selected from the group consisting of hydrogen atom, alkyl and cycloalkyl, wherein the alkyl and cycloalkyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R4 is selected from the group consisting of hydrogen atom, alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R5 is selected from the group consisting of alkyl, haloalkyl and cycloalkyl, wherein the alkyl and cycloalkyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, carboxyl, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R8 are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, alkoxy, haloalkyl, alkenyl, alkynyl, cyano, cycloalkyl and heterocyclyl, wherein the alkyl, cycloalkyl and heterocyclyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• n is 1, 2 or 3;
• and
• s is 0, 1 or 2.

A compound of general formula (IIGA) or (IIGaA) or a tautomer, mesomer, racemate, enantiomer or diastereomer thereof or a mixture thereof, or a pharmaceutically acceptable salt thereof,

• wherein:
• R1a and R1b are identical or different and are each independently selected from the group consisting of H atom, deuterium atom, halogen, alkyl, deuterated alkyl, haloalkyl, alkoxy, hydroxy, hydroxyalkyl, cyano, amino, nitro, carboxyl, aldehyde, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• Rw is a hydroxy protective group;
• Z is selected from the group consisting of O atom, S atom, NR7 and CR9R10;
• G1 is CR8 or a N atom;
• R2 are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, haloalkyl, hydroxyalkyl, alkoxy, cyano, amino, nitro, carboxyl, aldehyde, hydroxy, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R3 is selected from the group consisting of hydrogen atom, alkyl and cycloalkyl, wherein the alkyl and cycloalkyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R4 is selected from the group consisting of hydrogen atom, alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl, wherein the alkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R6 is independently selected from the group consisting of hydrogen atom, alkyl, deuterated alkyl, haloalkyl, alkoxy, cyano, amino, nitro, halogen, carboxyl, carboxylate group, aldehyde, hydroxy, hydroxyalkyl, cycloalkyl and heterocyclyl, wherein the alkyl, cycloalkyl and heterocyclyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R7 is selected from the group consisting of hydrogen atom, alkyl, haloalkyl, alkenyl, propargyl, cycloalkyl and heterocyclyl, wherein the alkyl, cycloalkyl and heterocyclyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R8 are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, alkoxy, haloalkyl, alkenyl, alkynyl, cyano, cycloalkyl and heterocyclyl, wherein the alkyl, cycloalkyl and heterocyclyl are each independently optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl, alkoxy, cyano, amino, nitro, hydroxy, hydroxyalkyl, carboxyl, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• R9 and R10 are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, alkoxy, hydroxy, hydroxyalkyl, haloalkyl, alkenyl, alkynyl, cyano, cycloalkyl and heterocyclyl;
• R11a and R11b are identical or different and are each independently selected from the group consisting of hydrogen atom, halogen, alkyl, haloalkyl, hydroxyalkyl, alkoxy, cyano, amino, nitro, carboxyl, aldehyde, hydroxy, cycloalkyl, heterocyclyl, aryl and heteroaryl;
• k is an integer from 1 to 6;
• q is 1, 2 or 3;
• t is 1 or 2;
• n is 1, 2 or 3;
• r is 0, 1, 2 or 3;
• and
• s is 0, 1 or 2.