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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Novartis AG
Original Assignee
Ciba Geigy AG
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Filing date
Publication date
Priority claimed from CH847070Aexternal-prioritypatent/CH563396A5/xx
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of GB1349673ApublicationCriticalpatent/GB1349673A/en
C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Cephalosporin Compounds
(AREA)
GB1903471*[A1970-06-051971-06-04Process for the protection of amino groups
ExpiredGB1349673A
(en)
Un procedimiento para la preparacion del antibiotico acido 7-(d-2-amino-2-(4-hidroxifenil) acetamido -3-(z)-1-propenil -cef-3-em-4-carboxilico, sustancialmente libre de su isomero (e).