ES424603A3 - Procedure to produce afalosporine derivatives. (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure to produce afalosporine derivatives. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES424603A3 ES424603A3 ES424603A ES424603A ES424603A3 ES 424603 A3 ES424603 A3 ES 424603A3 ES 424603 A ES424603 A ES 424603A ES 424603 A ES424603 A ES 424603A ES 424603 A3 ES424603 A3 ES 424603A3
- Authority
- ES
- Spain
- Prior art keywords
- formula
- translation
- machine
- legally binding
- google translate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Cephalosporin Compounds (AREA)
Abstract
Process for producing cephalosporin derivatives, particularly 7-isocyanatocephalosporin, of formula (III) **(See formula)** in which R2 is an ester protecting group, characterized in that it comprises treating a penicillin derivative of the formula (I) **(See formula)** Wherein R1 is a lower alkyl group and R2 is an ester protecting group with an acidic compound in an inert solvent and then react the thus obtained 7-amino-3-deacetoxycephalosporanic acid derivative of formula (II) **(See formula)** wherein R1 and R2 are as defined above, with phosgene in an inert solvent in the presence of an acid acceptor. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES424603A ES424603A3 (en) | 1976-09-20 | 1976-09-20 | Procedure to produce afalosporine derivatives. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES424603A ES424603A3 (en) | 1976-09-20 | 1976-09-20 | Procedure to produce afalosporine derivatives. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES424603A3 true ES424603A3 (en) | 1977-02-16 |
Family
ID=8466285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES424603A Expired ES424603A3 (en) | 1976-09-20 | 1976-09-20 | Procedure to produce afalosporine derivatives. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES424603A3 (en) |
-
1976
- 1976-09-20 ES ES424603A patent/ES424603A3/en not_active Expired
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