PROCESS FOR PREPARING OPTICALLY ACTIVE ALPHA-HYDROXY ACIDS AND DERIVATIVES THEREOF - Patent 1233939

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EP 1 233 939 A1

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(43)	Date of publication:
	28.08.2002 Bulletin 2002/35

(21)	Application number: 99961901.8

(22)	Date of filing: 02.12.1999

(51)	International Patent Classification (IPC)⁷: C07C 35/22, C07C 35/24, C07C 43/30, C07C 43/32, C07C 45/00, C07C 59/01, C07C 59/11, C07C 69/66, C07C 69/76, C07C 303/40, C07C 309/65, C07C 311/10, C07D 307/94

(86)	International application number:
	PCT/US9928/440

(87)	International publication number:
	WO 0104/0153 (07.06.2001 Gazette 2001/23)

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

(71)	Applicant: Scinopharm Singapore Pte Ltd.
	Singapore 068808 (SG)

(72)	Inventors:
	UANG, Biing-Jiun,4F, No. 2 Shih-Lin,Taipei 111 (TW) CHANG, Jia-Wen,No. 25 North District,Taichung 404 (TW) JANG, Der-Pin,No. 64 Hen Shan,Hsinchu Hsien 312 (TW)

(74)	Representative: Sexton, Jane Helen
	J.A. KEMP & CO.14 South SquareGray's Inn London WC1R 5JJ London WC1R 5JJ (GB)

(54)	PROCESS FOR PREPARING OPTICALLY ACTIVE ALPHA-HYDROXY ACIDS AND DERIVATIVES THEREOF