9α,20-Dihydroxyecdysone, a New Natural Ecdysteroid from <i>Silene italica</i> ssp. <i>nemoralis</i>
Zita PongráczDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 HungaryMária BáthoriDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 HungaryGábor K. TóthDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 HungaryAndrás SimonDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 HungaryMarianna MákDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 HungaryImre MáthéDepartment of Pharmacognosy, University of Szeged, Szeged, Eötvös utca 6, H-6720, Hungary, Institute for General and Analytical Chemistry, University of Technology and Economics, Budapest, Szt. Gellért tér 4, H-1111 Hungary, and G. Richter Ltd., Spectroscopic Research Division, Mass Spectrometric Laboratory, Budapest 10, P.O. Box 27, H-1475 Hungary
2003en
ABI
Annotatsiya
A new natural compound, 9alpha,20-dihydroxyecdysone (1), and two known related compounds, 20-hydroxyecdysone and ecdysone, were isolated from the herb Silene italica ssp. nemoralis. Compound 1 is the first C-9 hydroxylated ecdysteroid with a cis-fused A/B ring junction to have been isolated from a plant source, and its structure was determined using a combination of spectroscopic techniques.
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