Citalopram hydrobromide crystal and method for...

Details Citalopram hydrobromide crystal and method for... Citalopram hydrobromide crystal and method for...

2005-12-20

2005-12-20

Aulakh, Charanjit S. (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C514S469000

Reexamination Certificate

active

06977306

ABSTRACT:
According to the present invention, citalopram hydrobromide dissolved in a solvent containing at least one member selected from the group consisting of alcohol having 1-3 carbon atoms, water and acetone is crystallized or recrystallized while controlling the cooling rate, thereby to 1) provide an industrial method for crystallizing citalopram hydrobromide, which enables easy control of the crystal characteristics, such as particle size, particle size distribution and aspect ratio and the like of the crystal, and 2) provide citalopram hydrobromide crystal having crystal characteristics useful as a pharmaceutical bulk.

REFERENCES:
patent: 4136193 (1979-01-01), Bøgesø et al.
patent: 4650884 (1987-03-01), Bogeso
patent: 2003/0109577 (2003-06-01), Liljegren et al.
patent: 2003/0232881 (2003-12-01), Liljegren et al.
patent: 200 07 303 (2000-07-01), None
patent: 2 357 762 (2001-07-01), None
patent: WO 00/23431 (2000-04-01), None
Vilarrasa,Eunibar,Editorial Universitaria de Barcelona, pp. 63-64 (Dec. 1975).
Carré, “Précis de Technologie et de Chimie Industrielle,” vol. 1, pp. 319-320 (Librairie J.-B. Bailliére et Fils, Paris, France, 1938).
U.S. Appl. No. 09/794,755, Petersen et al., filed Feb. 26, 2001, date of publication, Jan. 10, 2002.
“3.1.1 Crystallization by Control of Temperature Change,”Organic Crystals Formation Handbook,pp. 34-35 (2000).

Affiliated with

Also associated with

Rating

Citalopram hydrobromide crystal and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Citalopram hydrobromide crystal and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Citalopram hydrobromide crystal and method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3502952