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Recebido em 13/9/09; aceito em 21/1/10; publicado na web em 3/5/10 Blainvillea rhomboidea: CHEMICAL CONSTITUENTS AND CYTOTOXIC ACTIVITY. The phytochemical investigation of the ethanol extract from the aerial parts of Blainvillea rhomboidea (Asteraceae) resulted in the isolation and characterization of 8β-tigloyloxy-grazielia acid, together with the flavonoids derrone, acacetin, luteolin and luteolin 7-methyl ether, and p-(1-methylethan-1-ol)-phenol. The structures of all compounds weredoi:10.1590/s0100-40422010000500022 fatcat:ootbnqehnvhxzalz7hzpfr3uti