(19)
(11) EP 3 097 099 A1

(12)

(43) Date of publication:
30.11.2016 Bulletin 2016/48

(21) Application number: 14879353.2

(22) Date of filing: 12.12.2014
(51) International Patent Classification (IPC): 
C07D 471/04(2006.01)
C07C 39/06(2006.01)
C07D 295/06(2006.01)
C07C 211/63(2006.01)
(86) International application number:
PCT/IB2014/066841
(87) International publication number:
WO 2015/110883 (30.07.2015 Gazette 2015/30)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 21.01.2014 IN MM02032014

(71) Applicant: Piramal Enterprises Limited
Mumbai 400013 (IN)

(72) Inventors:
  • KADAM, Shashikant
    Zahirabad Andhra Pradesh 502321 (IN)
  • SOMISETTI, Narender Rao
    Zahirabad Andhra Pradesh 502321 (IN)
  • ASHILI, Srinivas
    Zahirabad Andhra Pradesh 502321 (IN)
  • RAIGONI, Narsimulu
    Zahirabad Andhra Pradesh 502321 (IN)

(74) Representative: Richards, Michèle E. 
Fry Heath & Spence LLP The Gables Massetts Road
Horley Surrey RH6 7DQ
Horley Surrey RH6 7DQ (GB)

   


(54) AN IMPROVED PROCESS FOR THE PREPARATION OF TRAZODONE AND HYDROCHLORIDE SALT THEREOF