Fortin H, Tomasi S, Jaccard P, Robin V, Boustie J
UPRES Synthèse et Extraction de Molécules à Visée Thérapeutique Faculté de Pharmacie, Rennes, France.
Chem Pharm Bull (Tokyo). 2001 May;49(5):619-21. doi: 10.1248/cpb.49.619.
A new coumarin identified as 5-hydroxy-6-methoxy-7-(3-methyl-but-2-enyloxy)-2H-1-benzopyran-2-one (isoobtusitin) was isolated from Psiadia dentata. This compound showed, in vitro, a moderate inhibitory activity against poliovirus and a very weak activity against (HIV), whereas it was inactive against (HSV1), (VSV), and murine tumoral cell lines (3LL, L1210).