Process for production of piperidine derivatives

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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07863452

ABSTRACT:
Processes are disclosed for preparing piperidine derivative compounds of the formulae I, II or III:The processes involve reacting a compound of formula Ia, IIa or IIIawith isobutyrate or an isobutyrate equivalent.

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