(19)
(11) EP 0 844 997 A1

(12)

(43) Date of publication:
03.06.1998 Bulletin 1998/23

(21) Application number: 97915839.0

(22) Date of filing: 18.02.1997
(51) International Patent Classification (IPC): 
A61K 31/ 427( . )
C07D 417/ 12( . )
 A61P 3/ 10( . )
(86) International application number:
PCT/US1997/002577
(87) International publication number:
WO 1997/027191 (31.07.1997 Gazette 1997/33)
(84) Designated Contracting States:
DE ES FR GB IT

(30) Priority: 19.06.1996 US 19960665867

(71) Applicants:
  • DR. REDDY'S RESEARCH FOUNDATION
    Hyderabad 500 138, A.P. (IN)
  • Reddy-Cheminor, Inc.
    Ridgewood, NJ 07450 (US)

(72) Inventors:
  • VYAS, Krishnamurthi
    Miyapur, Hyderabad - 500 050 A.P. (IN)
  • PRABHAKAR, Chebiyyam
    Hyderabad - 500 019 A.P. (IN)
  • RAO, Sreenivas, Dharmaraja
    Hyderabab - 500 047 A.P. (IN)
  • SARMA, Mamillapalli, Ramabadhara
    Hyberabad 500 037 A.P. (IN)
  • REDDY, Om, Gaddam
    Hubsiguda, Hyderabad - 500 007 A.P. (IN)
  • RAMANUJAM, Rajagopalan
    Yellareddyguda, Hyderabad - 500 873 A.P. (IN)
  • CHAKRABARTI, Ranjan
    Hyderabad - 500 038 A.P. (IN)

(74) Representative: Baillie, Iain Cameron, et al 
Ladas & Parry, Altheimer Eck 2
80331 München
80331 München (DE)

   


(54) NOVEL POLYMORPHIC FORMS OF TROGLITAZONE HAVING ENHANCED ANTI-DIABETIC ACTIVITY AND A PROCESS FOR THEIR PREPARATION