Zuordnung des 13C-NMR.-Spektrums von Rifamycin-S Aufgrund der selektiven Protonen-Entkopplung

✍ Scribed by Hermann Fuhrer

• Publisher: John Wiley and Sons
• Year: 1973
• Tongue: German
• Weight: 556 KB
• Volume: 56
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19730560721

✦ Synopsis

Abstract

^13^C‐NMR. spectra of rifamycin‐S and some of its derivatives have been measured. A unambigous assignment of the signals, due to the hydrogen bearing ^13^C atoms, was possible with heteronuclear double resonance experiments. On the other hand the resonances of the quarternary ^13^C atoms could be ascribed only tentatively. ^13^C‐NMR. spectroscopy gives a more complete picture of the rifamycins, especially about the naphthoquinone chromophore, than previously obtained by ^1^H‐NMR.