摘要:
The present invention provides improved processes for the preparation of atomoxetine hydrochloride under reaction conditions that improve reaction yields and facilitate commercial synthesis. In particular, the invention is directed to the synthesis of atomoxetine HCl by adding HCl to a mixture of (R)-(−)-tomoxetine (S)-(+)-mandelate with an organic solvent, with or without a base and water. In preferred embodiments, the atomoxetine hydrochloride produced is Form A.
摘要:
The present invention provides novel crystalline forms of ascomycin as well as processes for the preparation thereof and pharmaceutical compositions comprising such crystalline forms of ascomycin.
摘要:
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.
摘要:
The present invention provides crystalline polymorphic forms of Dolasetron base. Also provided are methods of preparing the crystalline polymorphic forms of Dolasetron base.
摘要:
The invention encompasses a new crystalline form of pravastatin sodium characterized by X-ray powder diffraction peaks at 3.3, 3.9, 5.4, 6.4, 16.8, and 17.5 degrees two-theta, ±0.1 degrees two-theta and to methods of forming the crystalline form of the present invention and methods of making pravastatin Form B and Form D.