FIELD: chemistry.SUBSTANCE: invention relates to organic chemistry and specifically to novel tetrahydroisoquinolin-1-one derivatives of general formula or pharmaceutically acceptable salts thereof, where R1 is: lower alkylene-OH, lower alkylene-N(R0)(R6), lower alkylene-CO2R0, C5-6cycloalkyl, C6-10cycloalkenyl, aryl, heterocyclic group, -(lower alkylen, substituted OR0)-aryl or lower alkylene-heterocyclic group, where the lower alkylene in R1 can be substituted with 1-2 groups G1； cycloalkyl, cycloalkenyl and heterocyclic group in R1 can be substituted with 1-2 groups G2； aryl can be substituted with 1-2 groups G3； R0: identical or different from each other, each denotes H or a lower alkyl； R6: R0, or -S(O)2-lower alkyl, R2 is: lower alkyl, lower alkylene-OR0, lower alkylene-aryl, lower alkylene-O-lower alkylene-aryl, -CO2R0, -C(O)N(R0)2, -C(O)N(R0)-aryl, -C(O)N(R0)-lower alkylene-aryl, aryl or heterocyclic group, where the aryl in R2 can be substituted with 1-3 groups G4； R3 is: H or lower alkyl, or R2 and R3 can be combined to form C5-alkylene； R4 is: -N(R7)(R8), -N(R10)-OR7, -N(R0)-N(R0)(R7), -N(R0)-S(O)2-aryl or -N(R0)-S(O)2-R7, R7 is: lower alkyl, halogen-lower alkyl, lower alkylene-CN, lower alkylene-OR0, lower alkylene-CO2R0, lower alkylene-C(O)N(R0)2, lower alkylene-C(O)N(R0)N(R0)2, lower alkylene-C(=NOH)NH2, heteroaryl, lower alkylene-X-aryl or lower alkylene-X-heterocyclic group, where the lower alkylene in R7 can be substituted with 1-2 groups G1； aryl, heteroaryl and heterocyclic group in R7 can be substituted with 1-2 groups G6； X is: a single bond, -O-, -C(O)-, -N(R0)-, -S(O)p- or *-C(O)N(R0)-, where * in X has a value ranging from a bond to a lower alkylene, m is: an integer from 0 to 1, p is: is 2, R8 is: H, or R7 and R6 can be combined to form a lower alkylene-N(R9)-lower alkylene group, R9 is: aryl, R10 is: H, R5 is: lower alkyl, halogen, nitro, -OR0, -N(R0)2, or -O-lower alkylene-aryl, where the group G1 is: -OR0, N(R0)(R6) and aryl； group G2 is:
