(19)

(11)

EP 2 389 349 A2

(12)

(88) Date of publication A3: 16.09.2010 (43) Date of publication: 30.11.2011 Bulletin 2011/48 (21) Application number: 10701303.9 (22) Date of filing: 22.01.2010

(51) International Patent Classification (IPC):  C07C 57/16(2006.01) C07C 51/36(2006.01) C07C 55/21(2006.01) C08G 69/26(2006.01) C07C 69/34(2006.01) C07C 67/08(2006.01) C07C 67/343(2006.01) C07C 51/353(2006.01) C07C 55/02(2006.01) C07C 57/13(2006.01) C12P 7/44(2006.01) C07C 69/593(2006.01) C07C 67/303(2006.01) (86) International application number: PCT/US2010/021894 (87) International publication number: WO 2010/085712 (29.07.2010 Gazette 2010/30)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 22.01.2009 US 146545 P (71) Applicant: Draths Corporation Okemos, MI 48864 (US)	(72) Inventors: FROST, John, W. Okemos, MI 48824 (US) MILLIS, James Plymouth, MN 55447 (US) TANG, Zhenyu Okemos, MI 48864 (US) (74) Representative: Kirkham, Nicholas Andrew  Graham Watt & Co LLP St Botolph's House 7-9 St Botolph's Road Sevenoaks Kent TN13 3AJ Sevenoaks Kent TN13 3AJ (GB)