Crystalline form of phenylethanolamine, the preparation...

Details Crystalline form of phenylethanolamine, the preparation... Crystalline form of phenylethanolamine, the preparation...

2006-01-31

2006-01-31

Price, Elvis O. (Department: 1621)

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

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

06992211

ABSTRACT:
The subject-matter of the invention is the B form of ethyl [(7S)-7-[(2R)-2-(3-chlorophenyl)-2-hydroxyethylamino]-5,6,7,8-tetrahydronaphth-2-yloxy]acetate hydrochloride, of use as a medicament, which exhibits in particular the following physical characteristics:characteristic IR absorption peaks (cm−1): 2780, 2736, 1722, 1211;melting point: 129+/−2° C.;characteristic lines of the powder X-ray diffraction diagram (to within 0.1(2θ)): 7.69, 9.83, 13.95, 16.58, 18.70, 20.40, 21.57, 23.40, 24.15 and 25.64.The product can be obtained by salification of the base or recrystallization of the salt from an alcohol.

REFERENCES:
patent: 5202466 (1993-04-01), Boigegrain et al.
patent: 5270341 (1993-12-01), Keane et al.
patent: 0303546 (1989-02-01), None
patent: 0489640 (1992-06-01), None
patent: 0489640 (1992-10-01), None
Cecchi, R. et al., Eur. J. Med. Chem., vol. 29, pp. 259-267 (1994).

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