Autor: I. Yu. Bagryanskaya, A. G. Berdin, V. A. Raldugin, Yu. V. Gatilov, S. M. Adekenov, A. T. Kulyyasov, Tolstikov Genrikh A, Makhmut M. Shakirov, G. Habdolda, A. G. Druganov
Rok vydání: 2001
Předmět:
Zdroj: Russian Chemical Bulletin. 50:537-542
ISSN: 1066-5285
Popis: 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.
Databáze: OpenAIRE