Patent · US Active

Process for the preparation of spiroheterocyclic pyrrolidine diones

US9969734B2 · kind B2 · utility

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10Claims
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Key dates

Filing dateJul 11, 2014
Grant dateMay 15, 2018
Priority date—
Expiry dateJul 11, 2034

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D409/12
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process for making certain spiroheterocyclic pyrrolidine dione derivatives.

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