Levalbuterol hydrochloride Polymorph A

Details Levalbuterol hydrochloride Polymorph A Levalbuterol hydrochloride Polymorph A

2007-07-11

2008-12-16

Davis, Brian J (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07465831

ABSTRACT:
The invention is directed to processes for making levalbuterol HCl Polymorph A from by suspending or forming a first slurry of (R)-SLB(D)-DBTA in at least a first organic solvent, adding HCl to the suspension or slurry of the solid (R)-SLB.D-DBTA until the (R)-SLB.D-DBTA forms levalbuterol HCl Polymorph A, and isolating the levalbuterol HCl Polymorph A.

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