Patent · US Expired

Process for preparing 4-(hydroxy)-[1,4′]bipiperidinyl-l'carboxylic acid tert-butyl ester

US7276609B2 · kind B2 · utility

0Cited by
3References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 2, 2002
Grant dateOct 2, 2007
Priority date
Expiry dateNov 4, 2023

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D211/46
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The present invention concerns a process for preparing 4-(hydroxy)-[1,4′]bipiperidinyl-1′-carboxylic acid tert-butyl ester, comprising hydrogenating a mixture of 4-hydroxypiperidine and 1-tert-butoxycarbonyl-4-piperidone in a suitable solvent, in the presence of a suitable catalyst and at a suitable pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.