Crystalline polymorph of a bisulfate salt of a thrombin receptor antagonist
View Patent ↗A crystalline polymorph of a bisulfate salt of a thrombin receptor antagonist compound, which exhibits a powder x-ray diffraction profile substantially the same as that shown in FIG. 1 , or which exhibits a differential scanning calorimtery profile substantially the same as that shown in FIG. 3 , and is represented by the formula for Compound 2: and processes for preparing Compound 2 are disclosed. Pharmaceutical compositions comprising the polymorph of the bisulfate salt and at least one excipient or carrier, and methods of using the polymorph of Compound 2 to treat a variety of physiological disorders, such as thrombosis, are also disclosed.
1. A crystalline polymorph Form 1 of Compound 2 of the formula:
that exhibits a powder x-ray diffraction pattern having characteristic peak locations of 11.2, 16.4, 19.2 and 21.0 degrees 2θ.
2. The crystalline polymorph of Compound 2 of claim 1 that exhibits a powder x-ray diffraction pattern having characteristic peak locations of 9.9, 11.2, 16.4, 19.2, 21.0, 22.1, 23.7 and 26.7 degrees 2θ.
3. The crystalline polymorph of Compound 2 of claim 1 that exhibits a powder x-ray diffraction pattern having characteristic peak locations of 9.9, 11.2, 12.6, 14.5, 16.4, 19.2, 21.0, 22.1, 23.7, 26.7, 28.2 and 30.8 degrees 2θ.
4. The crystalline polymorph of Compound 2 of claim 1 that exhibits a powder x-ray diffraction pattern substantially the same as the powder x-ray diffraction pattern shown in FIG 1 .
5. A crystalline polymorph Form 1 of Compound 2 of the formula:
that exhibits a differential scanning calorimetry pattern substantially the same as the differential scanning calorimetry pattern shown in FIG. 3 .
6. A pharmaceutical composition comprising the crystalline polymorph Form 1 of Compound 2 according to claim 1 , and at least one excipient or carrier.
7. A purified form of the crystalline polymorph Form 1 of Compound 2 of claim 1 .