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(11)

EP 2 909 166 A1

(12)

(43) Date of publication: 26.08.2015 Bulletin 2015/35 (21) Application number: 12887041.7 (22) Date of filing: 22.10.2012

(51) International Patent Classification (IPC):  C07C 233/00(2006.01) C07C 237/00(2006.01) C07C 235/00(2006.01) C07C 239/00(2006.01) (86) International application number: PCT/IN2012/000694 (87) International publication number: WO 2014/064706 (01.05.2014 Gazette 2014/18)

(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 (71) Applicants: Symed Labs Limited Hyderabad 500 018 Andhra Pradesh (IN) Mohan Rao, Dodda Andhra Pradesh 500033 Hyderabad (IN) Anna Reddy, Ambati Andhra Pradesh 505 470 (IN)	(72) Inventors: MOHAN RAO, Dodda Andhra Pradesh Hyderabad 500033 (IN) ANNA REDDY, Ambati Karimnagar Andhra Pradesh 505470 (IN) (74) Representative: Best, Michael et al Lederer & Keller Patentanwälte Partnerschaft mbB Unsöldstrasse 2 80538 München 80538 München (DE)