Process for preparing 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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07396932

ABSTRACT:
A novel process and intermediates thereof for making 4,5-dihydro-pyrazolo[3,4-c]pyrid-2-ones of the type shown below from appropriate phenyl hydrazines is described.These compounds can be useful as factor Xa inhibitors.

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