摘要:
Provided herein is an impurity of eletriptan, eletriptan N-oxide, (R)-5-[2- (phenylsulfonypethyl]-3-[(1-methyl-2-pyrrolidinyl-N-oxide)methyl]-1H-indole, and a process for the preparation and isolation thereof. Provided further herein is a highly pure eletriptan or a pharmaceutically acceptable salt thereof substantially free of eletriptan N-oxide impurity, processes for the preparation thereof, and pharmaceutical compositions comprising highly pure eletriptan or a pharmaceutically acceptable salt thereof substantially free of eletriptan N-oxide impurity.
摘要:
An improved process for the synthesis of 3-[2-[4-((6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]-pyrimidin-4-one (Paliperidone) and Paliperidone Palmitate through a novel intermediate (2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-9-hydroxy-4H-pyrido [1,2-a]pyrimidine-4-one Palmitate ester.
摘要:
The present invention provides a novel and stable amorphous form of darifenacin free base, process for preparation, pharmaceutical compositions, and method of treating thereof. The present invention further provides a novel and stable polymorphic form of darifenacin hydrobromide, process for preparation, pharmaceutical compositions, and method of treating thereof.
摘要:
The present invention relates to a cost effective and industrially advantageous process for the preparation of tolterodine and pharmaceutically acceptable salts thereof.
摘要:
Provided herein is a highly pure deferasirox or a pharmaceutically acceptable salt thereof substantially free of hydrazine impurity, 4-hydrazinobenzoic acid, processes for the preparation thereof, and pharmaceutical compositions comprising highly pure deferasirox or a pharmaceutically acceptable salt thereof substantially free of hydrazine impurity.
摘要:
An improved process for the synthesis of 3-[2-[4-((6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]-pyrimidin-4-one (Paliperidone) and Paliperidone Palmitate through a novel intermediate (2-Chloroethyl)-6,7,8,9-tetrahydro-2-methyl-9-hydroxy-4H-pyrido [1,2-a]pyrimidine-4-one Palmitate ester.
摘要:
Provided herein is an impurity of fesoterodine, fesoterodine dehydroxy impurity, 2-[(1R)-3-[bis(1-methylethy)amino]-1-phenylpropyl]-4-methylphenyl isobutyrate, and a process for preparing and isolating thereof. Provided further herein is a highly pure fesoterodine or a pharmaceutically acceptable salt thereof substantially free of fesoterodine dehydroxy impurity, process for the preparation thereof, and pharmaceutical compositions comprising highly pure fesoterodine or a pharmaceutically acceptable salt thereof substantially free of dehydroxy impurity. Provided also herein is a pharmaceutical composition comprising solid particles of pure fesoterodine fumarate substantially free of dehydroxy impurity, wherein 90 volume-percent of the particles (D90) have a size of less than about 200 microns.
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 is a novel raantlelate sail of fesoterodine, process for the preparation, pharmaceutics!! compositions, and method of treating thereof. Provided also herein are solid state forms of fesoterodine mandelate, process for the preparation, pharmaceutical compositions, and method of treating thereof. The raandelate salt of fesoterodine is useful for preparing fesoterodine free base or a pharmaceutically acceptable salt thereof; particularly fesoterodine fumaraie, in high purity.
摘要:
The present invention provides a novel amorphous form of fesoterodine fumarate, process for preparation, pharmaceutical compositions, and method of treating thereof.