Isomeranzin against Herpes simplex virus in vitro from clausena heptaphylla (Roxb.) W. & Arn.: isolation, structure and biological assay

The isomeranzin, a coumarin was isolated from the leaves of Clausena heptaphylla. The structure was elucidated by IR, MS, 1 H and 13 C-NMR. For the first time, the anti-Herpes simplex virus type 1 & 2 in vitro activity of the compound was reported and discussed.