Polymorph forms of 4-anilinoquinazoline derivatives, the preparation methods and uses thereof

1. A crystalline form A of p-toluenesulfonate salt of the N-{4-[3-chloro-4-(3-fluoro-benzyloxy) phenylamino]-quinazolin-6-yl}-acrylamide, wherein the X-ray powder diffraction pattern of the crystalline form A has peaks at the diffraction angle 2θ(°) of 5.92±0.10, 8.64±0.10, 11.86±0.10, 16.58±0.10, 16.94±0.10, 17.86 ±0.10, 19.12 ±0.10, 19.66±0.10, 20.12±0.10, 23.42±0.10, 24.14±0.10, 24.80±0.10, and 26.76±0.10.

2. The crystalline form of claim 1 , wherein the X-ray powder diffraction pattern of the crystalline form A has peaks at the diffraction angle2θ(°) of 9.80±0.10, 13.28±0.10, 14.78±0.10, 17.36±0.10, 18.62±0.10, 21.62±0.10, 22.12±0.10, 22.38±0.10, 23.14±0.10, 25.20±0.10, 27.24±0.10, 28.34±0.10, 28.78±0.10, 33.12±0.10, and 41.70±0.10.

3. The crystalline form of claim 1 , wherein the X-ray powder diffraction pattern of the crystalline form A is substantially shown in FIG. 1 .

4. The crystalline form of claim 1 , wherein the infrared (IR) spectrum of the crystalline form A is substantially shown in FIG. 5 .

5. A process for preparing a crystalline form A of p-toluenesulfonate salt of the N-{4-[3-chloro-4-(3-fluoro-benzyloxy) phenylamino]-quinazolin-6-yl}-acrylamide, comprising the steps of:

dissolving the compound of formula (I) in an organic solvent to form a solution;

dropwise adding a solution of p-toluenesulfonic acid in the organic solvent with stirring and controlling the molar ratio of the compound of formula (I) to p-toluenesulfonic acid in the range of 1:1 to 1:6, and

resulting in a crystalline precipitate, and filtering out and washing the crystal to obtain the desired crystalline form.

6. The process of claim 5 , wherein the organic solvent is selected from the group consisting of tetrahydrofuran, methanol, ethanol, propanol, isopropanol, butanol, acetone, acetonitrile, DMSO, DMF, propanediol, and the mixtures thereof or the group consisting of tetrahydrofuran, methanol, ethanol, the mixture of tetrahydrofuran and methanol, and the mixture of tetrahydrofuran and ethanol.

7. The process of claim 5 , wherein for step (b), the molar ratio of the compound of formula (I) to p-toluenesulfonic acid is in the range of 1:3 to 6.

8. The process according to claim 5 , wherein the organic solvent is the mixture of tetrahydrofuran and methanol with a volume ratio of 1:1 to 3 or 1:2 to 3.

9. The process of claim 5 , wherein the solution of the compound of formula (I) in the step (a) has a concentration of 3 to 8 g/100 mL or 4 to 6 g/100 mL.

10. The process of claim 5 , wherein the solution of p-toluenesulfonic acid in the step (b) has a concentration of 10 to 30 g/100 mL or 15 to 25 g/100 mL.

11. The process of claim 5 , wherein the solution of the compound of formula (I) in the step (a) has a concentration of 3 to 8 g/100 mL or 4 to 6 g/100 mL; the solution of p-toluenesulfonic acid in the step (b) has a concentration of 10 to30 g/100 mL or 15 to 25 g/100 mL; and the organic solvent is the mixture of tetrahydrofuran and methanol with a volume ratio of 1:1 to 3 or 1:2 to 3.

12. A pharmaceutical composition comprising a crystalline form A of p-toluenesulfonate salt of the N-{4-[3-chloro-4-(3-fluoro-benzyloxy) phenylamino]-quinazolin-6-yl}-acrylamide and a pharmaceutically acceptable carrier.