Chemical modification of furanoeremophilan-14β,6α-olide

On performing the modification of furanoeremophilan-14β,6α-olide at the most reactive fragments of the molecule, the lactone and furan rings, it was established that in an alkaline medium furanoeremophilan-14β,6α-olide isomerizes into the 14α,6α-olide; the oxidation of furanoeremophilan-14β,6α-olide to a dilactone in the presence of Rose Bengal takes place with high yield under mild conditions — atmospheric oxygen, without heating and irradiation; on the interaction of furanoeremophilan-14β,6α-olide with selenium dioxide in glacial acetic acid a selenium-containing dimer is formed.