Patent · US Expired

4-hydroxy-l-threoninamides

US4663469A · kind A · utility

3Cited by
1References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 1984
Grant dateMay 5, 1987
Priority date—
Expiry dateDec 10, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D417/12
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A novel enantiomeric systhesis from ascorbic acid of (3S,4S)-3-amino-4-carbamoyloxymethyl-2-azetidinone-1-sulfate, an intermediate for an antibiotic compound.

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