1686-54-0Relevant articles and documents
PART I. EPOXYDES DITERPENIQUES : SYNTHESE ET REACTIVITE D'EPOXYDES DERIVES D'ACIDES RESINIQUES
Papillaud, B.,Tiffon, F.,Taran, M.,Miguel, B. Arreguy-San,Delmond, B.
, p. 1845 - 1858 (1985)
Epoxidation of methyl esters of resin acids with the pimarane skeleton with p-nitroperbenzoic acid has permitted the isolation of epoxides of the intracyclic double bond.Allylic diterpenic alcohols were obtained by acid-catalysed isomerisation of diterpene epoxides, and the action of Collins reagent on these allylic alcohols has been studied.
SELECTIVE AND STEREOCONTROLLED HYDROBORATION OF 13-EPI-PIMARADIENE DITERPENOIDS
San Felicianio, Arturo,Medarde, Manuel,Tome, Fernando,Caballero, Esther,Hebrero, Belen,et al.
, p. 1815 - 1822 (2007/10/02)
By introduction of bulky substituents at C16 it has been possible to achieve the stereoselective β-hydroboration-oxidation of the Δ8(14) double bond in 13-epi-pimarane diterpenoids.
METABOLITES OF THE HONEY MUSHROOM, Armillaria mellea
Ayer, William A.,Macaulay, John B.
, p. 7 - 14 (2007/10/02)
The fungus Armillaria mellea (Vahl ex.Fr.) Kummer is responsible for severe losses in timber and fruit production.The metabolites isolated when certain strains of this fungus are grown in liquid culture have been identified as diterpenoid acids posessing the abietane (1) and pimarane (2) skeletons.These compounds, known collectively as resin acids, have not been reported previously from fungal source.In addition to the resin acids dehydroabietic acid (3), pimaric acid (4), isopimaric acid (5), and sandaracopimaric acid (6), three additional acids, levopimaric acid endo-peroxide (7), 7-oxodehydroabietic acid (9), and 7-oxo-15-hydroxydehydroabietic acid (10) were obtained.On one accasion three orange pigments, austocystin F (11), averufin (12), and averufanin (13), all previously known fungal metabolites, were isolated.
Labdane acids and other components of the needles of Pinus pumila
Raldugin, V. A.,Demenkova, L. I.,Pentegova, V. A.
, p. 192 - 197 (2007/10/02)
The terpenoid and aliphatic components of an ethereal extract of the oleoresin of the Japanese stone pine have been investigated.Among them, 33 compounds have been identified, ten of which were isolated in the individual state.The labdane acids of the oleoresin investigated were represented by 19-O-succinylagatholic and 3β-hydroxy-, 3β-acetoxy, and 3-ketoanticopalic acids.
