EP0342990A3
Process for preparing erythromycin a oxime or a salt therof
Abstract
A process for preparing erythromycin A oxime or a salt thereof comprises reacting erythromycin A with hydroxylamine using an acid. Erythromycin A oxime and the salts thereof are useful as intermediates for the synthesis of macrolide antibiotics.
Term
Term ended
Projected expiry passed 18 May 2009, 17.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
Every citation, both waysCites: the store holds 2 of 3
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| EP0109253A2 | Cites | European Patent Office (EPO) | AD | Search report |
| EP0158467A2 | Cites | European Patent Office (EPO) | AD | Search report |
| TETRAHEDRON LETTERS, no. 2, January 1970, pages 157-160, Pergamon Press, Oxford, GB; E.H. MASSEY et al.: "Erythromycylamine" | Non-patent | – | – | Search report |
| R.W. ALDER et al.: "Mechanism in Organic Chemistry", 1971, pages 321-322, John Wiley & Sons Ltd | Non-patent | – | – | Search report |
| P. SYKES: "A Guidebook to Mechanism in Organic Chemistry", edition 5, 1981, pages 215-217, Longman Group | Non-patent | – | – | Search report |
13 members in 8 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 12272388 | Japan | – | |
| 12272388 | Japan | A | |
| 12272388 | Japan | A | |
| JP19880122723 | – | – | – |
Members13
| Document | Office | Kind | |
|---|---|---|---|
| EP0342990A2 | European Patent Office (EPO) | A2 | |
| JPH0249797A | Japan | A | |
| KR900018132A | Republic of Korea | A | |
| EP0342990A3This record | European Patent Office (EPO) | A3 | |
| CA1321787C | Canada | C | |
| US5274085A | United States of America | A | |
| EP0342990B1 | European Patent Office (EPO) | B1 | |
| AT121414T | Austria | T | |
| DE68922241D1 | Germany | D1 | |
| DE68922241T2 | Germany | T2 | |
| ES2074077T3 | Spain | T3 | |
| KR0123935B1 | Republic of Korea | B1 | |
| JP2751385B2 | Japan | B2 |
42 legal events, as 5 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Announcement of lapse in spainLapsedFD2A | FD2A | ES | |
| Se: european patent has lapsedLapsedEUG | EUG | EP | |
| Nl: ceased due to reaching the maximum lifetime of a patentCeasedNLV7 | NLV7 | EP | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Be: patent expiredExpiredBE20 | BE20 | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Patent ceasedCeasedPL | PL | CH | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Contractual licencesGD2A | GD2A | ES | |
| European patent in force as of 2002-01-01IF02 | IF02 | GB | |
| Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)732E | 732E | GB | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Definitive protectionFG2A | FG2A | ES | |
| Validation in greece3016095FG4A | FG4A | GR | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| It: translation for a ep patent filedITF | ITF | EP | |
| Designated contracting statesAK | AK | EP | |
| Corresponds to:REF | REF | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 0342990
- Publication, DOCDB
- 0342990
- Publication, EPODOC
- EP0342990
- Application
- 305066
- Application, DOCDB
- 89305066
- Application, EPODOC
- EP19890305066
Titles3
- German
- Verfahren zur Herstellung von Erythromcin A-oxim oder eines Salzes davon
- English
- Process for preparing erythromycin A oxime or a salt therof
- French
- Procédé pour la préparation d'érythromcine A-oxime ou d'un sel de ce composé
Classification
- CPC, 1
- C07H17/08
- IPC, 1
- C07H17 08
Designated states1
- Contracting states, 1
- Sweden