Levodopa prodrug mesylate hydrate

1. A compound crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate, which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 14.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, and 18.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

2. The compound of claim 1 , which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, and 19.2°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

3. The compound of claim 1 , which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, 19.2°±0.2°, 20.8°±0.2°, 21.9°±0.2°, 22.8°±0.2°, 23.4°±0.2°, 23.7°±0.2°, 23.9°±0.2°, and 26.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

4. The compound of claim 1 , which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 11.2°±0.2°, 12.0°±0.2°, 12.8°±0.2°, 13.8°±0.2°, 14.3°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, 18.7°±0.2°, 19.2°±0.2°, 20.5°±0.2°, 20.8°±0.2°, 21.1°±0.2°, 21.9°±0.2°, 22.8°±0.2°, 23.4°±0.2°, 23.7°±0.2°, 23.9°±0.2°, 24.7°±0.2°, 26.5°±0.2°, 28.2°±0.2°, 28.3°±0.2°, and 29.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

5. The compound of claim 1 , comprising from about 1.4 moles water to about 1.6 moles water to mole of the compound.

6. The compound of claim 1 , comprising from about 5.3 wt-% to about 5.7 wt-% water.

7. The compound of claim 1 , wherein the compound is prepared by a process comprising processing (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate by high shear wet granulation using a water content ranging from about 10 wt-% to about 20 wt-% to provide granules comprising the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate.

8. The compound of claim 1 , wherein the compound is prepared by a process comprising: dissolving (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate in a solvent comprising water to form a solution, wherein the water activity in the solvent is greater than about 0.6; and crystallizing the (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate to provide the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate.

9. The compound of claim 8 , wherein the solvent comprises isopropanol and at least about 7%-bv water.

10. A pharmaceutical composition comprising crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate, which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 14.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, and 18.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation and a pharmaceutically acceptable vehicle.

11. The pharmaceutical composition of claim 10 , comprising a therapeutically effective amount of the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate for treating a disease in a patient, wherein the disease is chosen from Parkinson's disease, depression, attention deficit disorder, schizophrenia, manic depression, cognitive impairment disorders, restless legs syndrome, periodic limb movement disorders, tardive dyskinesia, Huntington's disease, Tourette's syndrome, hypertension, addictive disorders, congestive heart failure, and excessive daytime sleepiness.

12. The pharmaceutical composition of claim 11 , wherein the disease is Parkinson's disease.

13. The pharmaceutical composition of claim 10 , comprising an L-aromatic amino acid decarboxylase inhibitor.

14. The pharmaceutical composition of claim 10 , comprising a catechol-O-methyltransferase inhibitor.

15. The pharmaceutical composition of claim 10 , formulated for sustained release oral administration.

16. An oral dosage form comprising crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate, which exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 14.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, and 18.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

17. The oral dosage form of claim 16 , wherein the amount of the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate in the oral dosage form is at least about 75 wt-%.

18. The oral dosage form of claim 16 , further comprising anhydrous (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate.

19. The oral dosage form of claim 18 , wherein the combined amount of the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate and the anhydrous (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate in the oral dosage form is at least about 75 wt-%.

20. The oral dosage form of claim 16 , which is a sustained release formulation.

21. The pharmaceutical composition of claim 10 , wherein the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, and 19.2°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

22. The pharmaceutical composition of claim 10 , wherein the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, 19.2°±0.2°, 20.8°±0.2°, 21.9°±0.2°, 22.8°±0.2°, 23.4°±0.2°, 23.7°±0.2°, 23.9°±0.2°, and 26.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

23. The oral dosage form of claim 16 , wherein the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, and 19.2°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.

24. The oral dosage form of claim 16 , wherein the crystalline (2R)-2-phenylcarbonyloxypropyl (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoate mesylate, hydrate exhibits characteristic scattering angles (2θ) at least at 6.0°±0.2°, 9.1°±0.2°, 9.6°±0.2°, 12.0°±0.2°, 13.8°±0.2°, 14.6°±0.2°, 15.1°±0.2°, 15.6°±0.2°, 16.1°±0.2°, 16.6°±0.2°, 17.6°±0.2°, 18.5°±0.2°, 19.2°±0.2°, 20.8°±0.2°, 21.9°±0.2°, 22.8°±0.2°, 23.4°±0.2°, 23.7°±0.2°, 23.9°±0.2°, and 26.5°±0.2° in an X-ray powder diffraction pattern measured using Cu—K α radiation.