摘要:
The present application provides subject-matter related to a mixture of crystalline laquinimod sodium particles, wherein (i) > 90% of the total amount by volume of the laquinimod sodium particles have a size of 50% of the total amount by volume of the laquinimod sodium particles have a size of
摘要:
The subject invention provides a mixture of crystalline laquinimod sodium particles, wherein (i) ≥ 90% of the total amount by volume of the laquinimod sodium particles have a size of ≤ 40 μm or (ii) ≥ 50% of the total amount by volume of the laquinimod sodium particles have a size of ≤ 15 μm, and wherein: a) the mixture has a bulk density of 0.2-0.4 g/mL; b) the mixture has a tapped density of 0.40-0.7 g/mL; c) an amount of heavy metal in the mixture is no more than 20ppm relative to the amount by weight of laquinimod sodium; d) an amount of MCQ in the mixture is no more than 0.15% relative to the amount of laquinimod sodium as measured by HPLC; e) an amount of MCQCA in the mixture is no more than 0.15% relative to the amount of laquinimod sodium as measured by HPLC; or f) an amount of MCQME in the mixture is no more than 0.12% relative to the amount of laquinimod sodium as measured by HPLC. The subject invention also provides a pharmaceutical composition comprising an amount of laquinimod and at least one of BH-3-HLAQ, MCQ, MCQCA, MCQME, NEA, and MCQEE. The subject invention also provides processes for preparing BH-3-HLAQ, MCQ, MCQCA, MCQME, MCQEE, and compounds prepared by said processes. Further provided is a process for testing whether a sample of laquinimod contains an undesirable impurity. Further provided isp a process for preparing a validated pharmaceutical composition comprising laquinimod, for preparing a pharmaceutical composition comprising laquinimod, or for distributing a validated batch of a pharmaceutical composition comprising laquinimod, for validating a batch of a pharmaceutical product containing laquinimod and a pharmaceutically acceptable carrier for distribution, and for preparing a packaged pharmaceutical composition comprising laquinimod, each comprising determining the amount of at least one of BH-3-HLAQ, MCQ, MCQCA, MCQME, NEA, and MCQEE in a sample or batch. The subject invention further provides use of BH-3-HLAQ, MCQ, MCQCA, MCQME, MCQEE as a reference standard to detect trace amounts of the impurity in a pharmaceutical composition comprising laquinimod. Finally, the subject invention provides methods of ddenrrining the concentration of BH-3- HLAQ, MCQ, MCQCA, MCQME, MCQEE, 5-HLAQ, SPIRO-LAQ or 3 H-LAQ in a pharmaceutical composition comprising laquinimod.
摘要:
The subject invention provides R (+) -N-formyl-propargyl- aminoindan and a composition containing N-propargyl-1 (R) -aminoindan or a pharmaceutically acceptable salt thereof, and a compound of R (+) -N-formyl-propargyl-aminoindan.
摘要:
The subject invention provides rasagiline citramide and a process for preparation of rasagiline citramide from rasagiline. Also provided are compositions containing-propargyl-1(R)-aminoindan or a pharmaceutically acceptable salt thereof and a compound of rasagiline citramide or a salt thereof and methods of validating said pharmaceutical compositions based on the percentage amount of rasagiline citramide relative to rasagiline.
摘要:
Disclosed are formulations of rasagiline base which are designed to delay release of rasagiline while maintaining specific pharmacokinetic properties. Also, disclosed are rasagiline citrate salt and the use and process of manufacture thereof.
摘要:
A process for manufacturing a highly purified, stable, non-hygroscopic, crystalline composition of L-DOPA ethyl ester. The L-DOPA ethyl ester is an active ingredient in pharmaceutical preparations for the treatment of patients suffering from Parkinson's Disease and related indications.
摘要:
The subject invention provides a Laquinimod amine salt, which is laquinimod meglumine, laquinimod choline hydroxide, laquinimod L-lysine or laquinimod monoethanolamine.
摘要:
A process for manufacturing a highly purified, stable, non-hygroscopic, crystalline composition of L-DOPA ethyl ester. The L-DOPA ethyl ester is an active ingredient in pharmaceutical preparations for the treatment of patients suffering from Parkinson's Disease and related indications.
摘要:
The present invention provides non-hygroscopic, crystalline salts of levodopa ethyl ester (LDEE), wherein the salt is the octanoate salt, the myristate salt, the succinate dihydrate salt, the fumarate salt of the fumarate dihydrate salt of levodopa ethyl ester. The subject invention also encompasses compositions comprising a levodopa ethyl ester salt and a carrier and processes for making these compositions. In addition, the subject invention concerns pharmaceutical compositions comprising a levodopa ethyl ester salt and a pharmaceutically acceptable carrier, as well as processes for making these pharmaceutical compositions. Furthermore, the subject invention includes methods of treating a subject afflicted with Parkinson's disease, senile dementia, dementia of Alzheimer's type, a memory disorder, depression, hyperactive syndrome, an affective illness, a neurodegenerative disease, a neurotoxic injury, brain ischemia, a head trauma injury, a spinal injury, schizophrenia, an attention deficit disorder, multiple sclerosis and seizures by the administration of levodopa ethyl ester salts.
摘要:
The subject invention provides R(+)-N-methyl-propargylaminoindan or a pharmaceutically acceptable salt thereof and a composition containing R(+)-N-propargyl-1(R)-aminoindan or a pharmaceutically acceptable salt thereof and a compound of R(+)-N-methyl-propargyl-aminoindan or a salt thereof. Also disclosed are methods of validating a batch of rasagiline for use in a pharmaceutical formulation and a method of validating a rasagiline formulation for distribution, based on the content of R(+)-N-methyl -propargyl-aminoindan or a salt thereof.