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Erhöhung der Nachweisempfindlichkeit von Cyclosporin A durch Derivatisierung mit 2-Naphthylselenylchlorid

✍ Scribed by Jean-Claude Gfeller; Albert K. Beck; Dieter Seebach


Publisher
John Wiley and Sons
Year
1980
Tongue
German
Weight
277 KB
Volume
63
Category
Article
ISSN
0018-019X

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✦ Synopsis


Enhancement of Detection Sensitivity of Cyclosporin A by Derivatization with 2‐Napthylselenylchloride

The UV./HPLC. detection sensitivity of cyclosporine A 1, an immunosuppressive cyclic undecapeptide containing one D‐aminoacid and seven N‐methylated aminoacids, is enhanced by a factor of 3‐4 (limit of detection 5 ng) by conversion of the characteristic side chain of amino‐acid‐1 to the β‐naphthylseleno‐substituted tetrahydrofuran derivative 4.


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