TY - JOUR T1 - The first synthesis of (±)-3,4-dihydroxy-8,9-methylenedioxypterocarpan, an antitumoral agent and its coumestan derivative JO - Journal of the Brazilian Chemical Society A1 - Silva, Alcides J. M. da A1 - Netto, Chaquip D. A1 - Costa, Paulo R. R. SN - 0103-5053 UL - 10.1590/S0103-50532004000600029 VL - 15 Y1 - 2004 PB - Brasil ER -