Global patent index - EP 1087955 A1

EP 1087955 A1 2001-04-04 - THE SEMI-SYNTHESIS OF BACCATIN III

Title (en)

THE SEMI-SYNTHESIS OF BACCATIN III

Title (de)

DIE HALBSYNTHESE VON BACCATIN III

Title (fr)

SEMI-SYNTHESE DE BACCATINE III

Publication

EP 1087955 A1 (EN)

Application

EP 99915408 A

Priority

  • CA 9900328 W
  • CA 2235356 A

Abstract (en)

[origin: WO9954322A1] This invention provides a process for the preparation of Baccatin III from a compound of formula (X) which comprises the steps of: (i) protecting the hydroxy group on a compound of Formula (X) at the 7-position or C9, or both C7 and C9 sequentially; (ii) oxidizing the resulting group at the C9 position; (iii) either: (a) sequentially deacylating the esters at positions C13 and C7 or, (b) simultaneously deacylating the esters at positions C13 and C7.

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

C07D 305/14

IPC 8 full level (invention and additional information)

C07D 305/14 (2006.01)

CPC (invention and additional information)

C07D 305/14 (2013.01); Y02P 20/582 (2015.11)

Citation (search report)

See references of WO 9954322A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL SE

EPO simple patent family

WO 9954322 A1 19991028; WO 9954322 B1 19991216; AU 3402699 A 19991108; EP 1087955 A1 20010404; NZ 508257 A 20030429

INPADOC legal status

2007-11-30 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Legal Event Code: WD

- Ref Document Number: 1036063

- Country of Ref Document: HK

2004-05-19 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031103

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001120

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB IT LI NL SE