2003
DOI: 10.1021/np020508a
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New Sesquiterpenes from Litsea verticillata

Abstract: Seven new sesquiterpenes, named litseagermacrane (1), 7-epi-eudesm-4(15)-ene-1alpha,6alpha-diol (2), 5-epi-eudesm-4(15)-ene-1beta,6beta-diol (4), litseahumulanes A (6) and B (7), and litseachromolaevanes A (11) and B (12), as well as the known compounds 7-epi-eudesm-4(15)-ene-1beta,6beta-diol (3), eudesm-4(15)-ene-1beta,6alpha-diol (5), octahydro-4-hydroxy-3alpha-methyl-7-methylene-alpha-(1-methylethyl)-1H-indene-1-methanol (8), 10-hydroxyl-15-oxo-alpha-cadinol (9), and aphanamol II (10), were isolated from an… Show more

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Cited by 95 publications
(73 citation statements)
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“…10 A substância 4, conhecida como Carainterol, também foi isolada de plantas 11 e, recentemente, foi sintetizada, 12 enquanto a substância 5 tem sido encontrada frequentemente em óleos essenciais. 13,14 A substância 6, que possui o esqueleto pouco comum do tipo opositano, foi obtida anteriormente de plantas dos gêneros Eringeron, 11 Senecio 15 e Tephrosia.…”
Section: Resultsunclassified
“…10 A substância 4, conhecida como Carainterol, também foi isolada de plantas 11 e, recentemente, foi sintetizada, 12 enquanto a substância 5 tem sido encontrada frequentemente em óleos essenciais. 13,14 A substância 6, que possui o esqueleto pouco comum do tipo opositano, foi obtida anteriormente de plantas dos gêneros Eringeron, 11 Senecio 15 e Tephrosia.…”
Section: Resultsunclassified
“…Thus, the structure of 1 was 1,6,9-trihydroxy-transeudesm-3-ene-6-O-β-D-glucopyronoside. The configuration of the hydroxyl group at C-1 was β-form based on the J value (δC = 3.69, dd, J = 11.5, 6.3 Hz) 15,16 and NOESY spectrum ( Figure 1). The configurations of hydroxyl groups at C-6 and C-9 were β-and α-forms, respectively, based on the NOESY correlations: the correlation of H-6 with H-5 (not with H-7), and the correlations of H-9 with H-7 and H-14 ( Figure 1).…”
mentioning
confidence: 99%
“…HPLC-DAD-MS (Agilent Eclipse Plus C18 column-5 μm, 250×4.6 mm; flow 1 mL/min; mobile phase ACN/0.05% formic acid 15:85→100:0) analysis was performed on an Agilent Technologies 6110 instrument operated in the ±-ESI-MS mode. By analysis of their spectral data and comparison with literature reports, the isolated compounds were identified as dihydropyrocurzerenone (1), 18 (-)--cadinol (2), 19 litseachromolaevanes A (3), 20 ent-4(15)-eudesmene-1β,6α-diol (4), 21 entoplopomone (5), 22 (-)-clovane-2,9-diol (6), 23 cryptomeridiol (7), 24 1β,4β,7α-trihydroxyeudesmane (8), 25 isodunnianin (9), 26 oplodiol (10), 27 homalamenol A(11), 24 bullatantriol (12), 28 1,4,6-trihydroxy-eudesmane (13).…”
Section: Isolation and Structure Identificationmentioning
confidence: 97%