Crystalline polymorphs of desvenlafaxine succinate and their...

Details Crystalline polymorphs of desvenlafaxine succinate and their... Crystalline polymorphs of desvenlafaxine succinate and their...

2007-11-05

2010-10-26

Zucker, Paul A (Department: 1621)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Radical -xh acid, or anhydride, acid halide or salt thereof...

C562S590000

Reexamination Certificate

active

07820716

ABSTRACT:
The present invention is directed to two new polymorph Form V and Form F of desvenlafaxine succinate, to processes of their preparations, pharmaceutical composition comprising such materials and their use in therapy. Form V is prepared from recrystallizing desvenlafaxine succinate in a mixture of tetrahydrofuran and ethanol. Form F is obtained from recrystallization of desvenlafaxine succinate in a mixture of cyclohexane and polar solvents such as ethanol, THF, methanol or isopropyl alcohol.

REFERENCES:
patent: 6673838 (2004-01-01), Hadfield et al.

Affiliated with

Also associated with

Rating

Crystalline polymorphs of desvenlafaxine succinate and their... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Crystalline polymorphs of desvenlafaxine succinate and their..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystalline polymorphs of desvenlafaxine succinate and their... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4240984