US 5,489,688 A · Process for preparing trans-piperidine-2,5-dicarboxylates

Abstract

Process for the preparation of a dialkyl trans-piperidine-2,5-dicarboxylate from a corresponding dialkyl cis-piperidine-2,5-dicarboxylate via a trans-substituted pyridine derivative of the formula ##STR1## wherein R is a (C.sub.1 -C.sub.3)alkyl group.

Claims2

Dependent claims

A trans substituted piperidine derivative of the formula ##STR23## wherein R is a (C.sub.1 -C.sub.3)alkyl.

Dependencies are inferred from the claim text.

Facts

Application

08/217,532Filed 24 Mar 1994 · division

Priority

27 Feb 1991

Granted

6 Feb 1996

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C07D 401/06
Containing two hetero rings: linked by a carbon chain containing only aliphatic carbon atoms
A61P 25/18
Drugs for disorders of the nervous system: antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
C07D 211/60
With hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals,…:…
C07D 471/04
In which the condensed system contains two hetero rings: ortho-condensed systems

Process for preparing trans-piperidine-2,5-dicarboxylates

Life of this patent

Abstract

Claims2

Process for preparing trans-piperidine-2,5-dicarboxylates

Life of this patent

Abstract

Claims2