摘要:
A process for purifying a polymer containing residual volatile monomers by drying the polymer powder under vacuum at a pressure and at a temperature which allows the vaporization of the residual monomers and optionally de-aggregating by sieving.
摘要:
A process for reducing the tendency of a drug substance to aggregate and/or agglomerate during storage. The process involves micronising the drug substance to give a mean particle size of less than about 10 μm, and exposing the micronised drug substance to a dry environment at an elevated temperature between 40° C and 120° C for at least six hours.
摘要:
A process of preparing a particulate and substantially crystalline drug substance. The process involves suspending a substantially crystalline drug substance in an anti-solvent to give a suspension, homogenising the suspension at elevated pressure to give drug particles that have a mean particle size of less than about 10 μm, and drying the drug particles to remove any residual anti-solvent.
摘要:
A novel polymorphic crystal form of (R)-3-(2-hydroxy-2,2-diphenyl-acetoxy)-1-(isoxazol-3- ylcarbamoyl-methyl)-1-azonia-bicyclo-[2.2.2]octane bromide, designated crystal form Talpha. Methods for preparing same and the use of the crystal form as the active ingredient of medicaments for the treatment of inflammatory or obstructive airways diseases are also described.