P. Vita-Finzi

Fungal metabolites XXVI: The structure of saponaceolides B, C and D, new C-30 terpenoids from Tricholoma saponaceum☆

Abstract The structures of saponaceolides B, C and D, new C-30 terpenoids from Tricholoma saponaceum, have been established, including their absolute configuration. High cytotoxic activity was detected for saponaceolides B and C.

Fungal metabolites XIII: New cytotoxic triterpene from Hebeloma species (basidiomycetes)

Abstract A new cytotoxic lanostane triterpene, named 3-β-acetyl-2-α(3′-hydroxy-3′-methyl)glutarylcrustulinol, was isolated from Hebeloma crustuliniforme and H. sinapizans . The structure has been elucidated by chemical correlations and spectroscopic evidences.

Trichoaurantianolide A, a new diterpene with an unprecedented carbon skeleton from Tricholoma aurantium

Abstract Trichoaurantianolide A ( 1 ), a new diterpene lactone possessing a novel carbon skeleton, was isolated from an EtOAc extract of the fruiting bodies of Tricholoma aurantium and its structure established by NMR studies.

Morphological and chemical studies on the pygidial defence glands of some Carabidae (Coleoptera)

Etude effectuee sur 4 especes Pterostichus externepunctatus roccai, Nebria psammodes, Chlaenius velutinus et Chlaenius vestitus

Tricholomenyns C, D, and E, novel dimeric dienyne geranyl cyclohexenones from the fruiting bodies of Tricholoma acerbum☆

Abstract Tricholomenyns C, D, and E, isolated from the fruiting bodies of Tricholoma acerbum and other species of the genus Tricholoma, are the first naturally occurring dimeric dienyne geranyl cyclohexenones.

Norlactarane and lactarane sesquiterpenes from Lactarius scrobiculatus

Abstract Investigation of Lactarius scrobiculatus gave two new lactarane lactones, an 8-norlactarane sesquiterpene, which is the first representative of such a class of compounds, and 4- epi -furandiol. A possible biosynthetic mechanism for the formation of these sesquiterpenes is proposed.

Normarasmane sesquiterpenes from Lactarius vellereus

Abstract Ethanolic extracts of Lactarius vellereus gave, in addition to known sesquiterpenes, one new highly oxygenated marasmane lactone and two new 13-normarasmane sesquiterpenes, which are the first representatives of such a class of compounds. Molecular configurations and conformations have been established by spectroscopic methods.

Biogenesis-like conversion of marasmane to lactarane and seco-lactarane skeleton

Abstract Some sesquiterpene furans with lactarane and seco-lactarane skeletons which previously have isolated from many Lactarius and Russula species, were chemically derived from stearyl belutinal via a tansformation similar to the biosynthetic pathway.

Fungal metabolites. XX: Chemical correlation of lactarane and secolactarane sesquiterpenes ― Absolute configuration of furosardonin A, lactaral and blennin C

Abstract The absolute configuration of furosardonin A and secolactarane sesquiterpenes has been established by chemical correlations. Secolactarane lactones and furans have been converted to lactaranes by the Me2AlCl catalyzed ene reaction.

STUDIES ON CHILEAN FUNGI III. FREE AND BOUND STEROLS FROM MYCENA CHLORINELLA* (BASIDIOMYCETES)

A mixture of oleic, linoleic and a-linolenic esters (1b-d, 2b-d) of ergosterol (1a) and episterol (2a) was isolated from the fruiting bodies of Mycena chlorinella. Ergosterol and its endoperoxide (3) were also found as free sterols. In addition, relatively large amounts of the nucleoside adenosine (4) were isolated