摘要:
The present invention provides crystalline forms of imatinib base, imatinib base free of desmethyl imatinib, and imatinib mesylate free of desmethyl imatinib mesylate, processes of their preparation and pharmaceutical compositions of imatinib mesylate.
摘要:
The present invention provides processes for preparing Palonosetron salts, especially, the hydrochloride salt and intermediates used to prepare Palonosetron salts.
摘要:
The present invention provides processes for preparing Palonosetron salts, especially, the hydrochloride salt and intermediates used to prepare Palonosetron salts.
摘要:
Methods for the synthesis of the N-carbamoyl imidazole (I) and its 1:1 adduct with imidazole are provided. Methods for the preparation of these crystalline intermediates in a high state of purity are also provided. These intermediates react cleanly under mild conditions to produce sorafenib in high yield and purity, without generating difficult-to-remove impurities.
摘要:
An improved stereoselective process for the preparation of 6α-fluoropregnane derivatives of formula (I), comprising the reaction of 3-benzoyloxy Δ3,5-pregnane derivatives of formula (II), with an electrophilic fluorination agent in a substantially water-free reaction mixture and in the presence of a salt of a strong acid with a nitrogenous base.
摘要:
The present invention provides process for the preparation of Imatinib and Imatinib salts, including processes that prepare intermediates for the production of Imatinib.