Patent · US Expired

Process for the industrial synthesis of the methyl diester of 5-amino-3-carboxymethyl-4-cyano-2-thiophenecarboxylic acid, and application to the synthesis of bivalent salts of ranelic acid and their hydrates

US7238815B2 · kind B2 · utility

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Key dates

Filing dateFeb 21, 2006
Grant dateJul 3, 2007
Priority date
Expiry dateFeb 21, 2026

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D333/38
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Process for the industrial synthesis of the compound of formula (I):Application to the synthesis of bivalent salts of ranelic acid and more especially strontium ranelate and its hydrates.

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