Kaurene diterpenes and flavonoids from Baccharis illinita flowers

Baccharis illinita DC, commonly known as ‘‘cha ventura’’ or ‘‘erva milagrosa’’ (family Asteraceae) is an annual sub-shrub with yellowish flowers that grows in natural grasslands. Flowers of Baccharis illinita DC were collected in Serra do Falcao, Minas Gerais, and identified by the botanist Jose Badini. A voucher specimen (OUPR No. 3450) has been deposited in the Herbarium, Universidade Federal de Ouro Preto, Minas Gerais, Brazil.