Patent · US Expired

Spirocyclic 3-phenyl-3-substituted 4-ketolactams and 4-ketolactones

US7425575B2 · kind B2 · utility

1Cited by
28References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 11, 2002
Grant dateSep 16, 2008
Priority date
Expiry dateMay 9, 2023

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D493/10
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The present invention relates to novel phenyl-substituted 4-ketolactams and -lactones of the formula (I)in which

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