Amide derivative for inhibiting the growth of cancer cells

1. A compound of formula (I) or a pharmaceutically acceptable salt thereof:

wherein,

A is

R 4 , R 5 , R 6 and R 7 being each independently hydrogen, halogen, N—C 1-6 alkyl or N-hydroxy amido or C—C 1-6 alkyl reverse amido(—NHCOC 1-6 ), hydroxycarbonyl (—COOH), C 1-6 alkyloxycarbonyl (—COOC 1-6 ), C 1-6 alkyl, or C 1-6 alkyl substituted with a hydroxy, C 1-6 dialkylamine or 5- or 6-membered heterocyclic group having at least one selected from the group consisting of N, O and S, wherein the 5- or 6-membered heterocyclic group is unsubstituted or substituted with C 1-4 alkyl;

R 1 is a C 6-10 aryl or 5 to 10-membered heterocyclic group having at least one selected from the group consisting of N, O and S substituted with one to five X, or C 1-6 alkyl substituted with phenyl;

R 2 is hydrogen, hydroxy, C 1-6 alkoxy, or C 1-6 alkoxy substituted with C 1-6 alkoxy or 5- or 6-membered heterocyclic group having at least one selected from the group consisting of N, O and S;

R 3 is hydrogen, —COOH, C 1-6 alkyloxycarbonyl, or amido N-unsubstituted or N-substituted with Y;

n a and n b are each an integer ranging from 0 to 6, with the proviso that n a and n b are not simultaneously 0; and when n a is 0, said

and when n b is 0, said

in which:

X is hydrogen, halogen, hydroxy, cyano, nitro, (mono-, di-, or trihalogeno)methyl, mercapto, C 1-6 alkylthio, acrylamido, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 alkoxy, phenyloxy, C 1-6 dialkylamino, or C 1-6 alkyl or C 1-6 alkoxy substituted with Z;

Y is hydroxy or C 1-6 alkyl or C 1-6 alkyl substituted with Z; and

Z is hydroxy, C 1-3 alkoxy, C 1-3 alkylthio, C 1-3 alkylsulfonyl, di-C 1-3 alkylamine, C 1-6 alkyl, phenyl or 5- or 6-membered aromatic or non-aromatic heterocyclic group, said heterocyclic group containing one to four of the moiety selected from the group consisting of N, O, S, SO, and SO 2 and said aryl and heterocyclic group being unsubstituted, or substituted with substituents selected from the group consisting of halogen, hydroxyl, amino, nitro, cyano, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 alkoxy, C 1-6 monoalkylamino and C 1-6 dialkylamino.

2. The compound of claim 1 , wherein R 1 is 3-chloro-4-fluorophenyl, 3-chloro-2-fluorophenyl, 3-chloro-2,4-difluorophenyl, 3,4-dichloro-2-fluorophenyl, 4-bromo-3-chloro-2-fluorophenyl, 4-bromo-2-fluorophenyl, (R)-1-phenylethyl, 3-chloro-4-(3-fluorobenzyloxy)phenyl, 3-chloro-4-(pyridin-2-ylmethoxy)phenyl, 1-(3-fluorobenzyl)-1H-5-indazole, 3-ethynylphenyl, 4-chloro-2,5-dimethoxyphenyl, 4-bromo-3-methylphenyl, 4-isopropylphenyl, 3-methylphenyl, 3-bromophenyl, 3-chlorophenyl, 3,4-dichlorophenyl, 2,3,4-trifluorophenyl, 4-fluoro-3-methylphenyl, 3,4-dimethylphenyl, 4-phenyloxyphenyl, 2,3-dihydro-1H-indenyl, 4-hydroxy-3,5-dichlorophenyl, 3-hydroxy-4-chlorophenyl, 4-hydroxy-2-chlorophenyl, 2-hydroxy-4-chlorophenyl, 3-cyanophenyl, 3-trifluoromethylphenyl, 3-chloro-2-methoxyphenyl, 4-chloro-3-methylphenyl, 4-bromo-3-chlorophenyl, 4-bromo-3-fluorophenyl, 3-chloro-2-methylphenyl, 3-dimethylaminophenyl, 2-fluoro-3-trifluoromethylphenyl, 3-cyano-4-fluorophenyl, 3-cyano-4-chlorophenyl, 3-methylthiophenyl, 2-chlorophenyl, 4-chlorophenyl, 3-chlorophenylmethyl, 3-vinylphenyl, 3-nitrophenyl, 3-acrylamidophenyl, 3-mercaptophenyl, 3-chloromethylphenyl, 4-hydroxy-3-chlorophenyl or 4-hydroxy-3-fluorophenyl;

R 2 is hydrogen, hydroxy, methoxy, ethoxy, 3-morpholinopropyloxy or methoxyethoxy;

R 3 is hydrogen, methyloxycarbonyl, carboxyl, amido, N-methylamido, N-ethylamido, N-propylamido, N-isopropylamido, N-hydroxyamido, N-2-hydroxyethylamido, N-3-hydroxypropylamido, N-2-methoxyethylamido, N-2-methylthioethylamido, N-2-methylsulfonylethylamido, N-2-N,N′-diethylaminoethylamido, or N-2-morpholinoethylamido;

R 4 , R 5 , R 6 and R 7 being each independently hydrogen, methyl, 4-methylpiperazinylmethyl, 4-methyl piperazinylethyl, N,N′-dimethylaminomethyl, N,N′-diethylaminomethyl, morpholinomethyl, pyrrolidin-1-ylmethyl, piperidin-1-ylmethyl, hydroxymethyl, N-methylcarboxamido, acetamido, N-hydroxyamido, methoxycarbonyl, chloro or carboxyl; and

n a and n b being each independently an integer ranging from 0 to 2.

3. The compound of claim 1 , which is selected from the group consisting of:

1) 1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

2) (E)-1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)but-2-en-1-one;

3) 1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)but-2-yn-1-one;

4) 1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-5-(4-methylpiperazin-1-yl)pent-2-yn-1-one;

5) 1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-(dimethylamino)but-2-yn-1-one;

6) 1-((3S)-3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

7) 1-((3S)-3-(4-(4-bromo-3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

8) 1-((3S)-3-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

9) 1-((3S)-3-(4-(4-bromo-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

10) 1-((3S)-3-(4-(3-chloro-4-(pyridin-2-ylmethoxy)phenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

11) 1-((3S)-3-(7-methoxy-4-((1R)-1-phenylethylamine)quinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

12) 1-((3S)-3-(4-(1-(3-fluorobenzyl)-1H-indazol-5-ylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

13) 1-((3S)-3-(4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

14) 1-((3R)-3-(4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

15) 1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)quinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

16) 1-((3S)-3-(4-(3-chloro-4-(3-fluorobenzyloxy)phenylamino)quinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

17) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

18) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

19) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

20) 1-((3R)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)prop-2-en-1-one;

21) N-(2-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)ethyl)acrylamide;

22) 1-(3-(7-methoxy-4-((1R)-1-phenylethylamino)quinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

23) 1-(3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

24) 1-(3-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

25) 1-(3-(4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

26) 1-(3-(4-(3-chlorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

27) 3-(6-(1-acryloylazetidin-3-yloxy)-7-methoxyquinazolin-4-ylamino)benzonitrile;

28) (E)-4-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-N-methyl-4-oxobut-2-enamide;

29) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-methylprop-2-en-1-one;

30) (Z)-methyl-4-(3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-4-oxobut-2-enoate;

31) N-(3-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-3-oxoprop-1-en-2-yl)acetamide;

32) (Z)-3-chloro-1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

33) (E)-3-chloro-1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

34) 1-(4-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

35) 1-(4-(7-methoxy-4-((1R)-1-phenylethylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

36) 1-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

37) 1-(4-(4-(3-ethinylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

38) 1-(4-(4-(4-chloro-2,5-dimethoxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

39) 1-(4-(4-(4-bromo-3-methylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

40) 1-(4-(4-(4-isopropylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

41) 1-(4-(4-(m-toluidino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

42) 1-(4-(4-(3-bromophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

43) 1-(4-(4-(3-chlorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

44) 1-(4-(4-(3,4-dichlorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

45) 1-(4-(7-methoxy-4-(2,3,4-trifluorophenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

46) 1-(4-(4-(4-fluoro-3-methylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

47) 1-(4-(4-(3,4-dimethylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

48) 1-(4-(7-methoxy-4-(4-phenoxyphenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

49) 1-(4-(4-(2,3-dihydro-1H-inden-5-ylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

50) 1-(4-(4-(3,5-dichloro-4-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

51) 1-(4-(4-(4-chloro-3-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

52) 1-(4-(4-(2-chloro-4-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

53) 1-(4-(4-(4-chloro-2-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

54) 1-(4-(4-(3-chloro-4-(3-fluorobenzyloxy)phenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

55) 1-(4-(4-(3-chloro-4-(pyridin-2-ylmethoxy)phenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

56) 3-(6-(1-acryloylpiperidin-4-yloxy)-7-methoxyquinazolin-4-ylamino)benzonitrile;

57) 1-(4-(4-(3-chloro-4-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

58) 1-(4-(7-methoxy-4-3-(trifluoromethyl)phenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

59) 1-(4-(4-(3-chloro-2-methoxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

60) 1-(4-(4-(4-chloro-3-methylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

61) 1-(4-(4-(4-bromo-3-chlorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

62) 1-(4-(4-(4-bromo-3-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

63) 1-(4-(4-(3-chloro-2-methylphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

64) 1-(4-(4-(3-(dimethylamino)phenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

65) 1-(4-(4-(2-fluoro-3-(trifluoromethyl)phenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

66) 5-(6-(1-acryloylpiperidin-4-yloxy)-7-methoxyquinazolin-4-ylamino)-2-fluorobenzonitrile;

67) 5-(6-(1-acryloylpiperidin-4-yloxy)-7-methoxyquinazolin-4-ylamino)-2-chlorobenzonitrile;

68) 1-(4-(7-methoxy-4-(3-(methylthio)phenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

69) 1-(4-(4-(2-chlorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

70) 1-(4-(4-(4-chlorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

71) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

72) 1-(4-(4-(3-chlorobenzylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

73) 1-(4-(7-methoxy-4-(3-vinylphenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

74) 1-(4-(7-methoxy-4-(3-nitrophenylamino)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

75) N-(3-(6-(1-acryloylpiperidin-4-yloxy)-7-quinazolin-4-ylamino)phenyl)acrylamide;

76) 1-(4-(4-(3-merchaptophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

77) 1-(4-(4-(3-chloromethyl)phenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

78) 1-(4-(4-(3-chloro-4-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

79) 1-(4-(4-(3-fluoro-4-hydroxyphenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

80) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)but-2-yn-1-one;

81) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-3-methylbut-2-en-1-one;

82) (E)-4-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-N-methyl-4-oxobut-2-enamide;

83) (Z)-methyl-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-oxobut-2-enoate;

84) (Z)-methyl-(4-(4-(3,4-dichloro-2-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-oxobut-2-enoate;

85) (Z)-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-oxobut-2-enoic acid;

86) (Z)-4-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-oxobut-2-enoic acid;

87) (E)-4-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-oxobut-2-enoic acid;

88) (E)-4-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-N-hydroxy-4-oxobut-2-enamide;

89) (Z)-3-chloro-1-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

90) (E)-3-chloro-1-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

91) N-(3-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-3-oxoprop-1-en-2-yl)acetamide;

92) (E)-1-((35)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

93) (E)-1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

94) (E)-1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-morpholinobut-2-en-1-one;

95) (E)-1-((3S)-3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-(pyrrolidin-1-yl)but-2-en-1-one;

96) (E)-1-((3S)-3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)pyrrolidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

97) (E)-1-((3S)-3-(4-(3-chloro-2,4-fluorophenylamino)quinazolin-6-yloxy)pyrrolidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

98) (E)-1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

99) (E)-1-(4-(4-(3,4-dichloro-2-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

100) (E)-1-(4-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

101) (E)-1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

102) (E)-1-(3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

103) (E)-N-(2-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)ethyl)-4-(dimethylamino)but-2-enamide;

104) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-((dimethylamino)methyl)prop-2-en-1-one;

105) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-((morpholinomethyl)prop-2-en-1-one;

106) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-((4-methylpiperazin-1-yl)methyl)prop-2-en-1-one;

107) 1-(3-(4-(3-chloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-(piperidin-1-ylmethyl)prop-2-en-1-one;

108) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-2-(piperidin-1-ylmethyl)prop-2-en-1-one;

109) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-2-((dimethylamino)methyl)prop-2-en-1-one;

110) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-2-(morpholinomethyl)prop-2-en-1-one;

111) 1-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-2-((dimethylamino)methyl)prop-2-en-1-one;

112) (Z)-1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)azetidin-1-yl)-4-(dimethylamino)but-2-en-1-one;

113) (Z)-1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-2-(dimethylamino)but-2-en-1-one;

114) 1-(4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-1-yl)-2-(hydroxymethyl)prop-2-en-1-one;

115) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-hydroxyquinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

116) 1-(3-(4-(3-chloro-2,4-difluorophenylamino)-7-(2-methoxyethoxy)quinazolin-6-yloxy)azetidin-1-yl)prop-2-en-1-one;

117) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-(2-methoxyethoxy)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

118) 1-(4-(4-(3-chloro-2,4-difluorophenylamino)-7-(3-morpholinopropoxy)quinazolin-6-yloxy)piperidin-1-yl)prop-2-en-1-one;

119) (2S,4S)-methyl-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxylate;

120) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxamide;

121) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-methylpiperidin-2-carboxamide;

122) (2S,4,5)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-ethylpiperidin-2-carboxamide;

123) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-propylpiperidin-2-carboxamide;

124) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-isopropylpiperidin-2-carboxamide;

125) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-hydroxypiperidin-2-carboxamide;

126) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-hydroxyethyl)piperidin-2-carboxamide;

127) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-methoxyethyl)piperidin-2-carboxamide;

128) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-(methylthio)ethyl)piperidin-2-carboxamide;

129) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-(methylsulphonyl)ethyl)piperidin-2-carboxamide;

130) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-(dimethylamino)ethyl)piperidin-2-carboxamide;

131) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(3-hydroxypropyl)piperidin-2-carboxamide;

132) (2S,4S)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-morpholinoethyl)piperidin-2-carboxamide;

133) (2R,4R)-methyl-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxamide;

134) (2R,4R)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxyl acid;

135) (2R,4R)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxamide;

136) (2R,4R)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-methylpiperidin-2-carboxamide;

137) (2R,4R)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-hydroxypiperidin-2-carboxamide;

138) (2R,4R)-1-acryloyl-4-(4-(3-chloro-2,4-difluorophenylamino)-7-methoxyquinazolin-6-yloxy)-N-(2-(methylsulphonyl)ethyl)piperidin-2-carboxamide;

139) (2R,4R)-1-acryloyl-4-(4-(3,4-dichloro-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxamide; and

140) (2R,4R)-1-acryloyl-4-(4-(4-bromo-2-fluorophenylamino)-7-methoxyquinazolin-6-yloxy)piperidin-2-carboxamide.

4. A pharmaceutical composition comprising the compound or its pharmaceutically acceptable salt of claim 1 as an active ingredient and a pharmaceutically acceptable carrier.