Global Patent Index - EP 1036084 A1

EP 1036084 A1 2000-09-20 - CHEMICAL SYNTHESIS OF 6-O-ALKYL ERYTHROMYCIN C

Title (en)

CHEMICAL SYNTHESIS OF 6-O-ALKYL ERYTHROMYCIN C

Title (de)

CHEMISCHE SYNTHESE VON 6-O-ALKYL ERYTHROMYCIN C

Title (fr)

SYNTHESE CHIMIQUE DE 6-O-ALKYLE ERYTHROMYCINE C

Publication

EP 1036084 A1 (EN)

Application

EP 98959495 A

Priority

  • US 9824601 W
  • US 98221497 A

Abstract (en)

[origin: WO9928333A1] A process of preparing a 6-O-alkyl derivative of erythromycin C is provided. The process includes the steps of protecting the 2',4"- and 9-oxime hydroxyls with acetyl and ketal protecting groups, alkylating the 6-hydroxyl, removing the protecting groups and deoximating. Intermediates used in the process are also provided.

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

C07H 17/08

IPC 8 full level (invention and additional information)

A61K 31/7042 (2006.01); A61K 31/7048 (2006.01); A61P 31/04 (2006.01); C07H 17/08 (2006.01)

CPC (invention and additional information)

C07H 17/08 (2013.01); Y02P 20/55 (2015.11)

Citation (search report)

See references of WO 9928333A1

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 9928333 A1 19990610; AU 1528299 A 19990616; CA 2310003 A1 19990610; EP 1036084 A1 20000920; IL 136089 D0 20010520; JP 2001525332 A 20011211

INPADOC legal status


2003-07-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030108

2002-10-16 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020828

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

- Effective date: 20000529

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 NL PT SE