Global Patent Index - EP 1036088 A1

EP 1036088 A1 2000-09-20 - METHOD OF PREPARING 16 ALPHA,17 ALPHA-DIALKYLATED STEROIDS

Title (en)

METHOD OF PREPARING 16 ALPHA,17 ALPHA-DIALKYLATED STEROIDS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON 16ALPHA,17ALPHA-DIALKYLIERTEN STEROIDE

Title (fr)

PROCEDE PERMETTANT DE PREPARER DES STEROIDES 16 ALPHA,17 ALPHA-DIALKYLES

Publication

EP 1036088 A1 (EN)

Application

EP 98956638 A

Priority

  • US 9823641 W
  • US 6714897 P

Abstract (en)

[origin: WO9928336A1] 16 alpha ,17 alpha -Dialkylated steroids are prepared by reacting a 16 alpha -alkyl-17(20)-enyl-20-silyl ether with an alkylating agent and an enol silyl ether cleaving agent in a suitable solvent.

IPC 1-7 (main, further and additional classification)

C07J 51/00; C07J 13/00

IPC 8 full level (invention and additional information)

C07J 5/00 (2006.01); C07J 13/00 (2006.01); C07J 51/00 (2006.01); C07J 71/00 (2006.01); C07J 75/00 (2006.01)

CPC (invention and additional information)

C07J 51/00 (2013.01); C07J 13/005 (2013.01); C07J 13/007 (2013.01)

Citation (search report)

See references of WO 9928336A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9928336 A1 19990610; AR 017423 A1 20010905; AU 1311599 A 19990616; AU 737219 B2 20010809; BR 9814717 A 20001003; CA 2299396 A1 19990610; EP 1036088 A1 20000920; JP 2001525333 A 20011211

INPADOC legal status


2002-09-04 [18R] REFUSED

- Effective date: 20020415

2001-08-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010717

2000-09-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000217

2000-09-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE