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ECB-ART-39505
Planta Med 2005 Jul 01;717:683-5. doi: 10.1055/s-2005-871277.
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Antimitotic properties of pterocarpans isolated from Platymiscium floribundum on sea urchin eggs.

Militão GC , Jimenez PC , Wilke DV , Pessoa C , Falcão MJ , Sousa Lima MA , Silveira ER , de Moraes MO , Costa-Lotufo LV .


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This study reports the antimitotic effects on sea urchin eggs of five known pterocarpans: (+)-3,10-dihydroxy-9-methoxypterocarpan, (+)-3,9-dimethoxypterocarpan [(+)-homopterocarpin], (+)-2,3,9-trimethoxypterocarpan, (+)-3,4-dihydroxy-9-methoxypterocarpan [(+)-vesticarpan] and (+)-3-hydroxy-9-methoxypterocarpan [(+)-medicarpin], isolated from the trunk of Platymiscium floribundum, a native tree from Brazil. All tested compounds showed strong activity in this assay, with 2,3,9-trimethoxypterocarpan being the most active (log IC50 of -8.10 +/- 0.02; -7.91 +/- 0.01; -7.97 +/- 0.02 M for first and third cleavages, and blastulae stages, respectively). These data suggest that the 2-methoxy substituent can be an important pharmacophoric unit.

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Genes referenced: LOC100887844