Process of preparing N-ureidoalkyl-piperidines

Details Process of preparing N-ureidoalkyl-piperidines Process of preparing N-ureidoalkyl-piperidines

2005-06-09

2009-06-02

Chang, Celia (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S207000, C548S452000

Reexamination Certificate

active

07541468

ABSTRACT:
The present application describes a process of preparing a compound of formula (IV),or salt or stereoisomer thereof: whereinPg, at each occurrence, is independently selected from an amine protecting group;comprising the steps of reacting a compound of Formulawith a reducing agent to give a compound of Formula III:reacting the compound of formula (III) with an amine of formula (IIa) using reductive amination to give the compound of formula (III)

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