| Autor: |
Evstratova, R., Rybalko, K., Sheichenko, V. |
| Zdroj: |
Chemistry of Natural Compounds; July 1972, Vol. 8 Issue: 4 p450-457, 8p |
| Abstrakt: |
1. Three sesquiterpene lactones have been isolated fromCentaurea hyrcanica: repin, acroptilin, and a new lactone related to them with mp 218–220°C (ethanol), [α]D20+ 104.7° (c 1.91; dioxane). 2. Structure (I) has been proposed for repin on the basis of the reactions performed, of an interpretation of the NMR spectra of compounds (I-XII) using the INDOR method, and also of a study of NMR spectra with additions of a paramagnetic salt. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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