METHOD OF PREPARING 16 ALPHA,17 ALPHA-DIALKYLATED STEROIDS - Patent 1036088

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EP 1 036 088 A1

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(43)	Date of publication:
	20.09.2000 Bulletin 2000/38

(21)	Application number: 98956638.5

(22)	Date of filing: 05.11.1998

(51)	International Patent Classification (IPC)⁷: C07J 51/00, C07J 13/00

(86)	International application number:
	PCT/US9823/641

(87)	International publication number:
	WO 9928/336 (10.06.1999 Gazette 1999/23)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

02.12.1997 US 67148 P

(71)	Applicant: ALCON LABORATORIES, INC.
	Fort WorthTexas 76134-2099 (US)

(72)	Inventor:
	CONROW, Raymond, E. Crowley, TX 76036 (US)

(74)	Representative: Keller, Günter, Dr. et al
	Lederer, Keller & RiedererPatentanwältePrinzregentenstrasse 16 80538 München 80538 München (DE)

(54)	METHOD OF PREPARING 16 ALPHA,17 ALPHA-DIALKYLATED STEROIDS