摘要:
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laguinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laguinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
摘要:
Disclosed is a process for the preparation of laquinimod sodium which removes the impurities after the salt formation step, thus resulting in crystals of higher purity as well as crystals having improved crystalline characteristics.
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:
The subject invention provides a mixture of crystalline laquinimod sodium particles, wherein (i) 90% or more of the total amount by volume of the laquinimod sodium particles have a size of 40 microns or less or (ii) 50% or more of the total amount by volume of the laquinimod sodium particles have a size of 15 microns or less, and wherein: a) the mixture has a bulk density of 0.2 g/mL to 0.4 g/mL; b) the mixture has a tapped density of 0.40 g/mL to 0.7 g/mL; c) an amount of heavy metal in the mixture is no more than 0.002% of heavy metal relative to the amount by weight of laquinimod sodium; d) an amount of 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline (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 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroqunoline-3-carboxylic acid (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 methyl 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylate (MCQME) in the mixture is no more than 0.12% relative to the amount of laquinimod sodium as measured by HPLC.
摘要:
The subject invention provides a mixture of crystalline laquinimod sodium particles, wherein (i) 90% or more of the total amount by volume of the laquinimod sodium particles have a size of 40 microns or less or (ii) 50% or more of the total amount by volume of the laquinimod sodium particles have a size of 15 microns or less, and wherein: a) the mixture has a bulk density of 0.2 g/mL to 0.4 g/mL; b) the mixture has a tapped density of 0.40 g/mL to 0.7 g/mL; c) an amount of heavy metal in the mixture is no more than 0.002% of heavy metal relative to the amount by weight of laquinimod sodium; d) an amount of 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline (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 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroqunoline-3-carboxylic acid (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 methyl 5-chloro-4-hydroxy-1-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylate (MCQME) in the mixture is no more than 0.12% relative to the amount of laquinimod sodium as measured by HPLC.