Patent ID: 7893046

Claim:
A method for treating leukemia, comprising administering to a patient suffering from leukemia an effective amount of the compound of the Formula (I) or the pharmaceutically acceptable salt thereof: wherein R 1 represents hydrogen or C 1 -C 5 alkyl; X independently represents fluoro, chloro, bromo, iodo, or C 1 -C 3 alkyl; V represents —CH═CH— or —C≡C—; Y represents Formula (II) or Formula (III): wherein R 2 represents C 1 -C 5 alkyl or C 1 -C 3 alkoxy; R 3 represents hydrogen or C 1 -C 5 alkyl; m represents an integer of 0 to 3; n represents 0 or 1; p represents an integer of 0 to 2; W represents —O— or —N(R 4 )— wherein R 4 represents hydrogen, C 1 -C 5 alkyl, C 3 -C 6 alkenyl, phenyl, benzyl, benzyl substituted with one or two R 5 s, tetrahydropyranyl, —(CH 2 ) q —O—CH 3 , pyridylnlethyl, —(CH 2 ) q —CN, C 4 -C 7 cycloalkylmethyl or thiazol-4-ylmethyl; R 5 represents hydroxy or C 1 -C 3 alkoxy; and q represents an integer of 1 to 3; or (b) a pharmaceutically acceptable salt of the compound of said Formula (I).