Tetrahedron Letters p. 863 - 866 (1989)
Update date:2022-09-26
Topics:
Gonzalez, Antonio G.
Mendoza, J. J.
Luis, J. G.
Ravelo, A. G.
Bazzocchi, I. L.
Two new di-triterpene quinone ethers, 5 and 6, were isolated from the roots of Rzedowskia tolantonguensis and their structure was determined from NMR data and a partial synthesis, involving the reaction of pristimerin (1) with DDQ.Netzahualcoyene (2) and alcohol 4 were formed in this reaction favouring the theorized biogenetic pathway to triterpene quinones with a rearranged netzahualcoyene skeleton.
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