Process for preparation of benzylpiperidine compounds

Details Process for preparation of benzylpiperidine compounds Process for preparation of benzylpiperidine compounds

2006-05-23

2006-05-23

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S234000

Reexamination Certificate

active

07049441

ABSTRACT:
According to the process as shown in the following scheme having a step for reacting Compound (I) with Compound (II) to produce Compound (III), benzylpiperidine compounds useful as synthesis starting materials of pharmaceutical agents, agricultural chemicals and the like can be produced conveniently by a short step:wherein R1is a hydrogen atom or an amino-protecting group, R2is a hydrogen atom, a hydrocarbon group optionally having substituents, an alkoxy group optionally having substituents or a heterocyclic group optionally having substituents, and R3is a lower alkyl group.

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patent: WO 00/61569 (2000-10-01), None
Zhou, et al., “A Practical Synthesis of 4-(Substituted-benzyl)piperidines and (±)-3-(Substituted-benzyl)pyrrolidines via a Wittig Reaction”,J. Org. Chem(1999), 64(10): pp. 3763-3766.

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