Four new polyketides, (R)-4-hydroxyeleutherin, eleuthone, eleutherinol-8-O - D-glucoside and isoeleuthoside C (dihydroisoeleutherin-5-O -β- D-gentiobioside) were isolated from the bulbs of Eleutherine bulbosa, to join eleutherin, isoeleutherin, eleutherinol, eleutherol, eleuthoside B (eleutherol-4-O -β- D-gentiobioside), eleuthoside C (dihydroeleutherin-5-O -β- D-gentiobioside), hongconin (4-oxodihydroisoeleutherin) and elecanacin, which have already been isolated from the same plant. The structures of the new polyketides, based on oxydated cyclic systems, have been elucidated by chemical and spectroscopic methods. © 2010 Taylor & Francis.
Polyketides from Eleutherine bulbosa / Francesca R., Gallo; Giovanna, Palazzino; Elena, Federici; Raffaella, Iurilli; Corrado, Galeffi; Kusamba, Chifundera; Nicoletti, Marcello; Giovanna, Palazzino; Elena, Federici; Raffaella, Iurilli; Corrado, Galeffi; Kusamba, Chifundera; Marcello, Nicoletti. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - 24:16(2010), pp. 1578-1586. [10.1080/14786419.2010.500007]
Polyketides from Eleutherine bulbosa
NICOLETTI, Marcello;
2010
Abstract
Four new polyketides, (R)-4-hydroxyeleutherin, eleuthone, eleutherinol-8-O - D-glucoside and isoeleuthoside C (dihydroisoeleutherin-5-O -β- D-gentiobioside) were isolated from the bulbs of Eleutherine bulbosa, to join eleutherin, isoeleutherin, eleutherinol, eleutherol, eleuthoside B (eleutherol-4-O -β- D-gentiobioside), eleuthoside C (dihydroeleutherin-5-O -β- D-gentiobioside), hongconin (4-oxodihydroisoeleutherin) and elecanacin, which have already been isolated from the same plant. The structures of the new polyketides, based on oxydated cyclic systems, have been elucidated by chemical and spectroscopic methods. © 2010 Taylor & Francis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
