PREPARATION OF 3-(2-HYDROXY ETHYL)-9-HYDROXY-2-METHYL-4H-PYRIDO-[1,2-A]-PYRIMIDIN-4-ONE OR ITS ACID ADDITION SALT

The invention relates to an improved process for preparation of 3-(2-hydroxy ethyl)-9- hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one or its acid addition salt and its conversion to paliperidone or its acid addition salt without involving the use of an acid catalyst. La présente invention concerne...

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Hauptverfasser:	BAPAT, UDAY, RAJARAM, SHARMA, ARUN, OMPRAKASH, MALIK, VINEET, JAIN, SUDHIR, HUKAMCHAND, PARIKH, SANJAY, NATVARLAL, KHAMAR, BAKULESH, MAFATLAL, DESAI, BHARAT, RAMCHANDRA, SODAGAR, KEVAL, RAMESHCHANDRA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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