AN IMPROVED PROCESS FOR PREPARATION OF PALIPERIDONE

The present invention relates to a process for preparation and purification of 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, also known as paliperidone or 9-hydroxy risperidone. The invention also relates to the p...

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Bibliographische Detailangaben
Hauptverfasser:	JOSHI ASHUTOSH VIJAY, BHANU MANJUNATH NARAYAN, CHAVAN AMIT ANANT
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES FISHING FORESTRY HUMAN NECESSITIES HUNTING PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	The present invention relates to a process for preparation and purification of 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one, also known as paliperidone or 9-hydroxy risperidone. The invention also relates to the preparation of intermediates useful in the process.