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Two new cyclopentenones, frutescencenones A (1) and B (2), and a new furanone derivative, frutescencenone C (3), together with two known cyclopentenones (4 and 5), were isolated from the leaves of Baeckea frutescens. Their structures were deduced by comprehensive spectroscopic analyses, including 1D and 2D NMR, and HREIMS data. Frutescencenone A (1) showed moderate growth inhibitory activity against...
Three new phloroglucinols, baeckenones D–F (1–3), were obtained from the leaves of Indonesian Baeckea frutescens, along with the known unusual endoperoxide, phloroglucinol (4). The structures of the isolated compounds were elucidated by 1D and 2D NMR and HREIMS spectra. Furthermore, the stereochemistry of baeckenone D (1) was established by an X-ray diffraction analysis. Among the isolated compounds...
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