Chemical process and new crystalline form

Details Chemical process and new crystalline form Chemical process and new crystalline form

2005-03-30

2010-12-07

Henley, III, Raymond J (Department: 1614)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Nitrogen containing other than solely as a nitrogen in an...

Reexamination Certificate

active

07846973

ABSTRACT:
The present invention relates to the preparation of a β2adrenergic agonist in crystalline salt form. In particular the invention relates to preparation of a crystalline salt of compound (I)in particular a crystalline monohydrochloride salt. The invention also relates to a new crystalline form (polymorph) of the monohydrochloride salt of compound (Ia) and a process for preparing it.

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