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13C nuclear magnetic resonance spectra of amaryllidaceae alkaloids. I—alkaloids with the crinane skeleton

✍ Scribed by August W. Frahm; Ahmed A. Ali; Mahmoud A. Ramadan

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
418 KB
Volume
23
Category
Article
ISSN
0749-1581

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## Abstract ^13^C NMR spectra of 27‐hydroxyfriedelane, kokoonol (27‐hydroxyfriedelan‐3‐one) and kokoononol (27‐hydroxyfriedelan‐3,21‐dione) have been recorded and signals assigned using the off‐resonance decoupling, inversion recovery and lanthanide induced shift techniques.