Patents Assigned to Jubilant Organosys Limted
  • One Spot Synthesis of Citalopram from 5-Cyanophthalide
    Publication number: 20080119662
    Abstract: A process for one pot synthesis of citalopram is disclosed. The process comprises subjecting 5-cyano phthalide to Grignard reduction followed cyclization and followed by C-alkylation reaction to obtain citalopram without isolation and purification of any intermediates. In another embodiment, 5-cyano phthalide is subjected to sequential Grignard reactions followed by cyclization to obtain citalopram without isolation and purification of any intermediate stages.
    Type: Application
    Filed: February 16, 2004
    Publication date: May 22, 2008
    Applicant: Jubilant Organosys Limted
    Inventors: Ambati Narahari Babu, Vuddamari Srinivas Goud, Santosh Laxman Gaonkar, Sulur G. Manjunatha, Ashok Krishna Kulkarni, Madhari A. Kulkarni