Patent ID: 8921563

Claim:
A compound of Formula I, a tautomer thereof, a racemate or optical isomer thereof, or a pharmaceutically acceptable salt or a solvate thereof, wherein: R 1 , R 2 are H, halogen (F, CI, Br, I), alkyl, substituted hydrocarbyl, alkenyl, substituted alkenyl, C 1 -C 6 alkoxy, C 1 -C 6 alkylamino, di-(C 1 -C 6 alkyl)amino, C 1-10 hydrocarbylacyloxy, C 1-10 hydrocarbylamido, carboxy, C 1-10 hydrocarbyloxyformyl, carbamoyl, or C 1-10 hydrocarbylaminoformyl, the substituent of each substituted group is selected from the group consisting of halogen, hydroxy, cyano, nitro, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 alkylthio, mono-, di- or tri-halogenated C 1-6 alkyl, amino, C 1-6 alkylamino, C 1-10 hydrocarbylacyloxy, or C 1-10 hydrocarbylamido; R 1 , R 2 can be same or different, wherein R 1 can represent 1-3 substituents which can be at o-, m- or p-position of benzene ring; R 2 can represent 1-3 substituents; R 3 , R′ 3 independently are H, alkyl, substituted hydrocarbyl, alkenyl, substituted alkenyl, C 1 -C 6 alkoxy, C 1 -C 6 alkylamino, di-(C 1 -C 6 alkyl)amino, C 1-10 hydrocarbylacyloxy, C 1-10 hydrocarbylamido, C 1 - 10 hydrocarbyloxyformyl, carbamoyl, or C 1 - 10 hydrocarbylaminoformyl, the substituent of each substituted group is selected from the group consisting of halogen, hydroxy, cyano, nitro, C 1-6 alkyl, C 1-6 alkoxy, C 1-6 alkylthio, mono-, di- or tri-halogenated C 1-6 alkyl, amino, C 1-6 alkylamino, C 1-10 hydrocarbylacyloxy, or C 1-10 hydrocarbylamido; Y is CH or N; wherein R 2 represents at most 3substituents which can be at 3-, 4-, 5- or 6-position when Y is CH; and wherein R 2 represents at most 2 substituents which can be at 4-, 5- or 6-position of heterocyclic ring of heterocyclic ring when Y is N.