## Abstract The carbon‐13 NMR spectra of lanosta‐8‐en‐3β‐ol, lanosta‐8, 24‐dien‐3β‐ol, lanosta‐7,9(11)‐dien‐3β‐ol, lanostan‐3β‐ol, eupha‐8‐en‐3β‐ol, eupha‐8,24‐dien‐3β‐ol, ursa‐12‐en‐3β‐ol (α‐amyrin) and oleana‐12‐en‐3β‐ol (β‐amyrin) have been obtained and completely assigned. The results of this s
Carbon-13 NMR spectra of some polycyclic triterpenoids
✍ Scribed by L. Radics; M. Kajtár-Peredy; S. Corsano; L. Standoli
- Book ID
- 104224310
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 293 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
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## Abstract Carbon‐13 NMR signal assignment of a number of polyoxygenated triterpenes of the olean‐12‐ene and urs‐12‐ene series, carried out by considering the changes in chemical shift produced by the change of oxygenation pattern(s), and using methyl oleanolate as a model, are reported.
## Abstract Carbon‐13 signal assignments of the labdane diterpenoids phlogantholide‐A, its diacetate and isophlogantholide‐A are reported. The assignments of the ^13^C NMR signals of 14‐deoxyandrographolide and its diacetate, made earlier, have now been confirmed by lanthanide shift studies on the