6-Methoxyflavonoids and Other Constituents from Microliabum polymnioides (Asteraceae)

OSCAR DIAZ; ROSANA ALARCÓN; DIEGO GUTIERREZ; ADRIANA PACCIARONI; FANY CAYO; DRA. VIRGINIA SOSA

NATURAL PRODUCT COMMUNICATIONS

NATURAL PRODUCTS INC

Año: 2015 vol. 10 p. 1 - 5

1934-578X

The South American genus Microliabum Cabrera (Asteraceae, Liabeae) comprises 6 species, Microliabum candidum (Griseb.) H. Rob., Microliabum eremophilum (Cabrera) H. Rob., Microliabum glanduliferum (Cabrera) H. Rob., Microliabum humile (Cabrera) Cabrera, Microliabum mulgediifolium (Muschl.) H. Rob., and Microliabum polymnioides (R. E. Fries) H. Rob. [1]. Microliabum ocurrs from central Bolivia to central Argentina [2]. Early studies on the chemical constituents of genus Microliabum revealed the presence of sesquiterpene lactones [3a-b], flavonoids [4] and scopoletin [3a]. However, a recent systematic revision of the genus Microliabum [5a-b] has shown that the population identified as M. polymnioides in the previous work [3a] belongs to M. mulgediifolium