ES419813A1 - A procedure for the preparation of new derivatives of penama and cefama. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of new derivatives of penama and cefama. (Machine-translation by Google Translate, not legally binding)
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.)
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Fujisawa Pharmaceutical Co Ltd
Original Assignee
Fujisawa Pharmaceutical Co Ltd
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Priority claimed from JP11234872Aexternal-prioritypatent/JPS5531788B2/ja
Priority claimed from JP47128658Aexternal-prioritypatent/JPS5929597B2/en
Priority claimed from JP12865772Aexternal-prioritypatent/JPS5550956B2/ja
Application filed by Fujisawa Pharmaceutical Co LtdfiledCriticalFujisawa Pharmaceutical Co Ltd
Publication of ES419813A1publicationCriticalpatent/ES419813A1/en
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
Nitrogen Condensed Heterocyclic Rings
(AREA)
Cephalosporin Compounds
(AREA)
Abstract
A procedure for the preparation of new derivatives of Pena and Cephama of general formula: **(See formula)** where R1 is amino or substituted amino, R2 is carboxy or protected carbozi and A is a group of formula: **(See formula)** where R3 is lower alkyl and Y'' is a strong nucleophile residue whose procedure is to react with a strong nucleophile a compound of general formula: **(See formula)** where R1 and R2 are defined above and A1 is a group of formula: **(See formula)** where R3 is as defined above and Z is a group convertible to a residue of a strong nucleophile; if necessary followed by a removal reaction of the carboxy protecting group. (Machine-translation by Google Translate, not legally binding)
ES419813A1972-11-081973-10-19A procedure for the preparation of new derivatives of penama and cefama. (Machine-translation by Google Translate, not legally binding)
ExpiredES419813A1
(en)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for preparing 1- (p-acetyphenyl) -2- (2,2-dichloroacetamido) -1,3-propanodiol. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of acid, 2, 3-rent (lower) penam-3-carboxilico. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)