摘要:
Provided herein is a novel, commercially viable and industrially advantageous process for the preparation of 3-[(1R,2R)-3-(dimethylamino)-1-ethyl-2-methylpropyl]phenol (Tapentadol), or a pharmaceutically acceptable salt thereof, and its intermediates, in high yield and purity. Provided also herein are novel solid state forms of tapentadol intermediates and processes for their preparation thereof. Provided further herein is a purification process for preparing highly pure tapentadol hydrochloride.
摘要:
Provided herein are impurities of imatinib, N-(2-Methyl-5-methylamino-phenyl)-N-(4-pyridin-3-yl-pyrimidin-2-yl)-formamide (formamide impurity) and 4-[4-(Imidazole-1-carbonyl)-piperazin-1-ylmethyl]-N-[4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-ylamino)-phenyl]-benzamide (carbonylimidazole impurity), and processes for the preparation and isolation thereof. Provided further herein is a highly pure imatinib or a pharmaceutically acceptable salt thereof substantially free of formamide and carbonylimidazole impurities, processes for the preparation thereof, and pharmaceutical compositions comprising highly pure imatinib or a pharmaceutically acceptable salt thereof substantially free of impurities. Disclosed also herein is a process for preparing substantially pure α-form of imatinib mesylate.
摘要:
Described is a highly stable amorphous form of imatinib mesylate having a water content of less than 0.5 percent by weight, based on the total weight of the amorphous imatinib mesylate, (anhydrous amorphous imatinib mesylate), a process for preparation thereof, and pharmaceutical compositions.
摘要:
Provided herein are novel crystalline forms of rasagiline salts, processes for their preparation, pharmaceutical compositions, and method of treating thereof. The rasagiline salts include a maleate salt, a mandelate salt, or a salicylate salt.
摘要:
Provided herein is rasagiline mesylate having a 90 volume-percent of the particles (D90) with a size of about 600 microns to about 1500 microns, and a process for the preparation thereof. Provided also herein are pharmaceutical compositions comprising rasagiline mesylate particles having a particle size which is suitable for homogeneous distribution of the drug substance in a tablet blend, in particular 90 volume-percent of the particles (D90) have a size of about 255 microns to about 1500 microns, and a process the preparation thereof.
摘要:
Provided herein are convenient, industrially advantageous and environmentally friendly processes for the preparation of (−)-(S)-5-hydroxy-2-[N-n-propyl-N-2-(2-thienyl)ethylamino]tetralin (rotigotine) or a pharmaceutically acceptable salt thereof. Provided further herein is a highly pure rotigotine or a pharmaceutically acceptable salt thereof substantially free of impurities, processes for the preparation thereof, and pharmaceutical compositions comprising highly pure rotigotine or a pharmaceutically acceptable salt thereof substantially free of impurities.
摘要:
Described is a highly stable amorphous form of imatinib mesylate having a water content of less than 0.5 percent by weight, based on the total weight of the amorphous imatinib mesylate, (anhydrous amorphous imatinib mesylate), a process for preparation thereof, and pharmaceutical compositions.