| Autor: |
Daus, Mareena, Chakthong, Suda, Dumjun, Krittima, Paosen, Supakit, Voravuthikunchai, Supayang P., Poldorn, Preeyaporn, Jungsuttiwong, Siriporn, Chomlamay, Natharika, Yangok, Kanyaluck, Watanapokasin, Ramida |
| Předmět: |
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| Zdroj: |
Natural Product Research; 2024, Vol. 38 Issue 2, p270-277, 8p |
| Abstrakt: |
Acylphloroglucinols are well-known Eucalyptus secondary metabolites which exhibit a variety of structures and bioactivities. The investigation of a crude acetone extract of Eucalyptus camaldulensis leaves led to the isolation of two new acylphloroglucinols, eucalypcamals O and P (1 and 2) together with seven phloroglucinols (3–9), and a benzene derivative (10). Their chemical structures were elucidated by 1D and 2D nuclear magnetic resonance (NMR) spectroscopy and mass spectroscopy. The absolute configurations of compounds 1 and 2 were established by comparison of experimental and calculated electronic circular dichroism (ECD) data. In the putative biosynthetic pathway, eucalypcamals O and P should be derived from hetero-Diels-Alder reaction between grandinol and trans-isoeugenol. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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