Global Patent Index - EP 1071685 A1

EP 1071685 A1 2001-01-31 - TITANIUM CATALYZED PREPARATION OF CARBAPENEM INTERMEDIATES

Title (en)

TITANIUM CATALYZED PREPARATION OF CARBAPENEM INTERMEDIATES

Title (de)

TITAN-KATALYSIERTE HERSTELLUNG VON CARBAPENEM-ZWISCHENPRODUKTEN

Title (fr)

PREPARATION DE PRODUITS INTERMEDIAIRES DES CARBAPENEMS CATALYSEE AU TITANE

Publication

EP 1071685 A1 (EN)

Application

EP 99916629 A

Priority

  • GB 9811297 A
  • US 9907956 W
  • US 8200398 P
  • US 9142298 P

Abstract (en)

[origin: WO9952908A1] An efficient method for the synthesis of a compound of formula (2) is disclosed which comprises reacting a 4-acyl-2-azetidinone with a titanium, zirconium or hafnium enolate of a 1-hydroxy-2-butanone derivative.

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

C07D 477/14

IPC 8 full level (invention and additional information)

C07D 205/08 (2006.01); C07D 477/00 (2006.01); C07D 477/04 (2006.01)

CPC (invention and additional information)

C07D 477/04 (2013.01); C07D 205/08 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9952908 A1 19991021; AU 3490899 A 19991101; AU 745980 B2 20020411; CA 2328219 A1 19991021; EP 1071685 A1 20010131; EP 1071685 A4 20010718; JP 2002511470 A 20020416

INPADOC legal status


2005-05-04 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20041103

2003-05-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030327

2001-07-18 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20010606

2001-07-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2001-07-18 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 07D 477/14 A, 7C 07D 205/08 B

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001116

2001-01-31 [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 NL PT SE

2001-01-31 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL PAYMENT 20001116;LT PAYMENT 20001116;LV PAYMENT 20001116;MK PAYMENT 20001116;RO PAYMENT 20001116;SI PAYMENT 20001116