Asteraceae is one the largest families of Eudicots comprising several species used for economic and medicinal purposes, and characterized by the production of various bioactive metabolites. Among the 1700 genera of the family, Richterago Kuntze comprises 16 species all endemic to Brazil1. The aim of this work is to report the first phytochemical study of polar phases from Richterago discoidea (Less.) Kuntze. Extracts from flowers (52.90 g) and leaves (169.0 g) of R. discoidea were prepared with hexane and subsequently with methanol. Methanol extracts were partitioned successively with hexane, dichloromethane, ethyl acetate (EtOAc) and buthanol (BuOH). The EtOAc partition phase of flowers was subjected to Sephadex LH-20 column eluted with methanol and the group A8 was purified by preparative HPLC furnishing the compounds 1-2. The structures of compounds were elucidated by 1H and 13C NMR. In other groups of EtOAc phase from flowers and from BuOH phase the compounds 3-14 were identified with pattern addition. Thus, the compounds identified were seven flavonoids: tiliroside (1), 3-O-methoxy-helichrysoside (2), eupafolin (3), quercetin-3-O-robinobioside (4), quercetin-3-O-glucoside (5), isorhamnetin-3-O-rutinoside (6), isorhamnetin-3-O-glucoside (7), four chlorogenic acid derivatives: 5-caffeyolquinic acid (8), 4,5- (9), 3,5- (10), 3,4- (11) dicaffeoylquinic acids and the caffeic (12), vanillic (13) and syringic (14) acids. The mass of compounds 8-14 allowed the evaluation of these components in DPPH antiradical assay. Results showed IC50 of 29.7 µM, 14.3 µM, 17.1 µM, 14.8 µM, 23.7 µM, 24.8 µM, respectively.