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Berdin A. G. Raldugin V. A. Shakirov M. M. Bagryanskaya I. Yu. Gatilov Yu. V. Druganov A. G. Kulyyasov A. T. Adekenov S. M. Habdolda G. Tolstikov G. A. 《Russian Chemical Bulletin》2001,50(3):537-542
As part of our continuing studies of lactones from the aerial part of the plant Rhaponticum serratuloides, 15-O-deacetylrhaposerin and new guaianolide called rhaserin were isolated along with the well-known loliolide. The configuration of the C(17) asymmetric center in 15-O-deacetylrhaposerin was established by X-ray diffraction analysis. The molecular structure of rhaserin was determined based on the data from 1H and 13C NMR spectroscopy (including 2D NMR spectroscopy) of this lactone and its 4,15-O-isopropylidene derivative. 相似文献
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