Process for the synthesis of 9-hydroxy risperidone...

Details Process for the synthesis of 9-hydroxy risperidone... Process for the synthesis of 9-hydroxy risperidone...

2011-03-29

2011-03-29

Wilson, James O (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

active

07915412

ABSTRACT:
The present invention relates to a process for preparing paliperidone from its intermediate 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one.

REFERENCES:
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patent: WO 01/85731 (2001-11-01), None
patent: WO 02/12200 (2002-02-01), None
patent: WO 2005/030772 (2005-04-01), None
patent: WO 2007/093870 (2007-08-01), None
Third Party Observations received for European Application 07811310.7, dated Oct. 31, 2008.
International Search Report of PCT International Application No. PCT/US2007/017955, dated May 8, 2008.

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