Cipadessains A-K, eleven limonoids from the fruits of Cipadessa cinerascens

Eleven new mexicanolide-type limonoids, cipadessains A-K (1-11), were isolated from the fruits of (Pellegr) Hand.-Mazz. Their planar structures were determined based on IR, UV, 1D and 2D NMR spectra and HRESIMS data. The absolute configuration of 1 was elucidated by single-crystal X-ray diffraction...

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Veröffentlicht in:RSC advances 2018-01, Vol.8 (19), p.10437-10445
Hauptverfasser: Sun, Dong-Mei, An, Fa-Liang, Wei, Shan-Shan, Zhang, Yan-Qiu, Wang, Xiao-Bing, Luo, Jun, Kong, Ling-Yi
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Sprache:eng
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Zusammenfassung:Eleven new mexicanolide-type limonoids, cipadessains A-K (1-11), were isolated from the fruits of (Pellegr) Hand.-Mazz. Their planar structures were determined based on IR, UV, 1D and 2D NMR spectra and HRESIMS data. The absolute configuration of 1 was elucidated by single-crystal X-ray diffraction using mirror Cu Kα radiation, and that of compounds 2-8 were determined by ECD analysis. Two mexicanolides bearing methoxybutenolide moiety originated from the furan ring 3 and 6, showed significant cytotoxicity against HepG2 cell line with IC values of 5.23 ± 0.12, 8.67 ± 1.02 μM, respectively; and NO inhibitory activities in LPS-activated RAW 264.7 macrophages at nontoxic concentration (IC 5.79 ± 0.18, 6.93 ± 0.89 μM, respectively).
ISSN:2046-2069
2046-2069
DOI:10.1039/c8ra00728d