摘要:
An amorphous form of montelukast sodium and a montelukast sodium lactose co-precipitate, processes for producing same, pharmaceutical compositions containing same and methods of treatment utilizing same are disclosed.
摘要:
The present invention relates to an improved process of alkylating secondary amines, more particularly of alkylating compounds having amino piperidinic group, which are useful as donepezil intermediates, wherein an alcohol serves as reaction facilitator thus enabling to obtain donepezil and salts thereof in high quality and yield. The present invention also relates to the prevention of unwanted alkylation of donepezil precursors, having amino piperidinic group, by using suitable reaction conditions.
摘要:
Novel crystalline forms of Donepezil base, processes for producing same, pharmaceutical compositions containing same and methods of treatment utilizing same are disclosed.
摘要:
An amorphous form of montelukast sodium and a montelukast sodium lactose co-precipitate, processes for producing same, pharmaceutical compositions containing same and methods of treatment utilizing same are disclosed.
摘要:
The invention provides a stable and easy to formulate amorphous solid, suitable for the preparation of solid pharmaceutical compositions comprising a mixture of an amorphous active pharmaceutical ingredient and at least one pharmaceutically acceptable inactive ingredient.
摘要:
The invention provides a process for the preparation of a compound of the formula 6 comprising the hydrolysis and decarboxylation of a compound of the formula 5 according to the reaction: wherein R and R2 independently a C1-C4 alkyl group or an aralkyl group.
摘要:
Novel crystalline forms of Donepezil base, processes for producing same, pharmaceutical compositions containing same and methods of treatment utilizing same are disclosed.
摘要:
The present invention provides novel intermediates, which preferably include 3-substituted, alkyl 2,2-difluoro-3-hydroxy-3-(2,2-dialkyldioxolan-4-yl)-propionate derivatives, and 3,5-disubstituted-2-deoxy-2,2-difluoro-1-oxo-D-ribose derivatives. The present invention also provides processes for producing such intermediates and processes for producing gemcitabine therewith.
摘要:
Novel crystalline forms I, II, III, IV, V, VI, VII, VIII, IX, and X of montelukast ammonium salts are provided, and novel methods of making these forms are disclosed.
摘要:
The present invention provides a process for preparing highly pure montelukast and salts thereof by reacting the side-chain precursor 1-(mercaptomethyl)-cyclopropaneacetic acid with 2-(2-(3S)-(3-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(methanesulfonyloxypropyl)phenyl-2-propanol in a solvent mixture containing a base.