You’re using a public version of DrugPatentWatch with 5 free searches available | Register to unlock more free searches. CREATE FREE ACCOUNT

Last Updated: April 19, 2024

Claims for Patent: 8,754,072


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 8,754,072
Title:Salts and polymorphs of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6h-azepino[- 5,4,3-cd]indol-6-one
Abstract: The present invention relates to novel polymorphic forms of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[- 5,4,3-cd]indol-6-one, and to processes for their preparation. Such polymorphic forms may be a component of a pharmaceutical composition and may be used to treat a mammalian disease condition mediated by poly(ADP-ribose) polymerase activity including the disease condition such as cancer.
Inventor(s): Basford; Patricia Ann (Sandwich, GB), Campeta; Anthony Michael (Ledyard, CT), Gillmore; Adam (Sandwich, GB), Jones; Matthew Cameron (Sandwich, GB), Kougoulos; Eleftherios (Morrisville, NC), Luthra; Suman (Groton, CT), Walton; Robert (Sandwich, GB)
Assignee: Pfizer Inc. (New York, NY)
Application Number:13/522,549
Patent Claims: 1. A crystalline camsylate salt of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[- 5,4,3-cd]indol-6-one.

2. The salt of claim 1, wherein the salt is a crystalline anhydrous salt.

3. The salt of claim 1, wherein the camsylate is S-camsylate.

4. The salt of claim 1, wherein the camsylate is R-camsylate.

5. The salt of claim 1, wherein the salt has a powder X-ray diffraction pattern comprising one or more or two or more or three peaks at diffraction angles (2.theta.) selected from the group consisting of 12.2.+-.0.2, 14.8.+-.0.2 and 22.4.+-.0.2, wherein said powder X-ray diffraction pattern is obtained using copper K-alpha.sub.1 X-rays at a wavelength of 1.5406 .ANG.ngstroms.

6. The salt of claim 1, wherein the salt has a solid state NMR spectrum comprising one or more .sup.13C chemical shifts selected from the group consisting of 213.4.+-.0.2, 171.8.+-.0.2, and 17.3.+-.0.2 ppm.

7. The salt of claim 1, wherein the salt has a solid state NMR spectrum comprising one or more .sup.19F chemical shifts selected from the group consisting of -118.9.+-.0.2 and -119.7 ppm.+-.0.2.

8. The salt of claim 1, wherein the salt has a powder X-ray diffraction pattern comprising one or more or two or more or three peaks at diffraction angles (2.theta.) selected from the group consisting of 12.2.+-.0.2, 14.8.+-.0.2 and 22.4.+-.0.2 obtained using copper K-alpha.sub.1 X-rays at a wavelength of 1.5406 .ANG.Angstroms; a solid state NMR spectrum comprising one or more or two or more or three .sup.13C chemical shifts selected from the group consisting of 213.4.+-.0.2, 171.8.+-.0.2, and 17.3.+-.0.2 ppm; and a solid state NMR spectrum comprising one or more or two .sup.19F chemical shifts selected from the group consisting of -118.9.+-.0.2 and -119.7 ppm.+-.0.2.

9. The salt of claim 1, wherein the salt is a substantially pure polymorph of S-camsylate polymorph Form A.

10. The salt of claim 1, wherein the salt is a substantially pure polymorph of S-camsylate polymorph Form B or a substantially pure polymorph of S-camsylate polymorph Form C.

11. A crystalline maleate salt of 8-fluoro-2-{4-[(methylamino)methyl]phenyl}-1,3,4,5-tetrahydro-6H-azepino[- 5,4,3-cd]indol-6-one.

12. The salt of claim 11, wherein the salt is a crystalline anhydrous salt.

13. The salt of claim 11, wherein the salt has a powder X-ray diffraction pattern comprising peaks at diffraction angles (2.theta.) 6.0.+-.0.2, 20.3.+-.0.2, and 21.7.+-.0.2, wherein said powder X-ray diffraction pattern is obtained using copper K-alpha.sub.1 X-rays at a wavelength of 1.5406 .ANG.ngstroms.

14. The salt of claim 11, wherein the salt is a substantially pure polymorph of maleate polymorph Form A.

15. The salt of claim 11, wherein the salt has a powder X-ray diffraction pattern comprising peaks at diffraction angles (2.theta.) of 7.5.+-.0.2, 11.3.+-.0.2, and 24.3.+-.0.2, wherein said powder X-ray diffraction pattern is obtained using copper K-alpha.sub.1 X-rays at a wavelength of 1.5406 .ANG.ngstroms.

16. The salt of claim 11, wherein the salt has a solid state NMR spectrum comprising one or more .sup.13C chemical shifts selected from the group consisting of 171.3.+-.0.2, 112.4.+-.0.2, and 43.8.+-.0.2 ppm.

17. The salt of claim 11, wherein the salt has a solid state NMR spectrum comprising a .sup.19F chemical shift at -123.1 ppm.+-.0.2.

18. The salt of claim 11, wherein the salt has a powder X-ray diffraction pattern comprising: one or more or two or more or three peaks at diffraction angles (2.theta.) selected from the group consisting of 7.5.+-.0.2, 11.3.+-.0.2, and 24.3.+-.0.2 obtained using copper K-alpha.sub.1 X-rays at a wavelength of 1.5406 .ANG.ngstroms; a solid state NMR spectrum comprising one or more or two or more or three .sup.13C chemical shifts selected from the group consisting of 171.3.+-.0.2, 112.4.+-.0.2, and 43.8.+-.0.2 ppm; and a solid state NMR spectrum comprising a .sup.19F chemical shift at -123.1.+-.0.2 ppm.

19. The salt of claim 11, wherein the salt is a substantially pure polymorph of maleate polymorph Form B.

20. A pharmaceutical composition comprising the salt of claim 1 and a pharmaceutically acceptable carrier.

21. A pharmaceutical composition comprising the salt of claim 11 and a pharmaceutically acceptable carrier.

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.