Otro
A new antifungal phenolic glycoside derivative and iridoids and lignans from Alibertia sessilis (Vell.) K. Schum. (Rubiaceae)
Registro en:
Journal of the Brazilian Chemical Society, v. 18, n. 7, p. 1405-1409, 2007.
0103-5053
1678-4790
10.1590/S0103-50532007000700017
S0103-50532007000700017
WOS:000252189000017
2-s2.0-36949037986.pdf
2-s2.0-36949037986
Autor
Silva, Viviane C. da
Bolzani, Vanderlan da Silva
Young, Maria C. M.
Lopes, Márcia Nasser
Resumen
A new antifungal phenolic glycoside, 3,4,5-trimethoxyphenyl-1-O-β-D- (5-O-syringoyl)-apiofuranosyl-(1→6)-β-D-glucopyranoside (1), together with four known iridoids, geniposidic acid (2), geniposide (3), 6α-hydroxygeniposide (4) and 6β-hydroxygeniposide (5); two lignans, (+)-lyoniresinol-3α-O-β-D-glucopyranoside (6), (-)-lyoniresinol- 3α-O-β-D-glucopyranoside (7); and two phenolic acids, chlorogenic (8) and salicylic acids (9) and D-manitol (10), were isolated from the ethanolic extract of the stems of Alibertia sessilis. Structures of 1 and of the known compounds were determined by spectroscopic analysis. All compounds isolated were evaluated for their antifungal activities against two phytopathogenic fungi strains Cladosporium cladosporioides and C. sphaerospermum by direct bioautography. ©2007 Sociedade Brasileira de Química.