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EP 1 701 975 A1

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(43) Date of publication: 20.09.2006 Bulletin 2006/38 (21) Application number: 03819206.8 (22) Date of filing: 31.12.2003

(51) International Patent Classification (IPC):  C07K 9/00(2006.01) C07C 237/22(2006.01) (86) International application number: PCT/IN2003/000454 (87) International publication number: WO 2005/063797 (14.07.2005 Gazette 2005/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (71) Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH New Delhi 110 001 (IN)

(72) Inventors: SHARMA, Gangavaram Vasantha Madhava Hyderabad 500 044, Andhra Pradesh (IN) REDDY, Kondireddi Ravinder Warangal 506 347, Andhra Pradesh (IN) PALAKODETY, Radha Krishna, F-205 Hyderabad 500 076, Andhra Pradesh (IN) KUNWAR, Ajit Chand Hyderabad 500 007, Andhra Pradesh (IN) AMPAPATHI, Ravi Sankar Uravakonda 515 812, Andhra Pradesh (IN) BULUSU, Jagannadh Hyderabad 500 007, Andhra Pradesh (IN) PAGADALA, Jayaprakash Wanaparthy 509 103, Andhra Pradesh (IN) (74) Representative: Viering, Hans-Martin  Patent- und Rechtsanwälte Viering, Jentschura & Partner, Steindorfstrasse 6 80538 München 80538 München (DE)