NOVEL POLYMORPHIC FORMS OF 5-[4-[2-[N-METHYL-N-(2-PYRIDYL)AMINO]ETHOXY]BENZYL]THIAZOLIDINE-2,4-DIONE MALEIC ACID SALT AND PROCESS FOR THEIR PREPARATION - Patent 1322647

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EP 1 322 647 A1

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(43)	Date of publication:
	02.07.2003 Bulletin 2003/27

(21)	Application number: 01971336.1

(22)	Date of filing: 25.09.2001

(51)	International Patent Classification (IPC)⁷: C07D 417/12, C07D 277/34, A61K 31/425, A61P 3/10, A61P 9/12

(86)	International application number:
	PCT/US0129/896

(87)	International publication number:
	WO 0202/6737 (04.04.2002 Gazette 2002/12)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

26.09.2000 IN MA080500

(71)	Applicant: DR. REDDY'S RESEARCH FOUNDATION
	Hyderabad,500 016 Andhra Pradesh (IN)

(72)	Inventors:
	CHEBIYYAM, Prabhakar Hyderabad 500 016,Andhra Pradesh (IN) MAMILLAPALLI, Ramabhadra, Sarma Hyderabad 500 016,Andhra Pradesh (IN) KRISHNAMURTHI, Vyas Hyderabad 500 016,Andhra Pradesh (IN) SEELLA, Vishnuvardhan, Reddy Hyderabad 500 016,Andhra Pradesh (IN) GADDAM, Om, Reddy Hyderabad 500 016,Andhra Pradesh (IN)

(74)	Representative: Ebner von Eschenbach, Jennifer et al
	Ladas & Parry,Dachauerstrasse 37 80335 München 80335 München (DE)

(54)	NOVEL POLYMORPHIC FORMS OF 5-[4-[2-[N-METHYL-N-(2-PYRIDYL)AMINO]ETHOXY]BENZYL]THIAZOLIDINE-2,4-DIONE MALEIC ACID SALT AND PROCESS FOR THEIR PREPARATION