ChemInform Abstract: Structure Revision of Caesalpinistas A and B and Isolation of a New Furanoditerpenoid from the Cotyledons of Caesalpinia decapetala var. japonica.

Abstract

The new diterpenoid, deoxycaesaljaponin A (I) is isolated along with the known caesalpinista B.

New Prenylated ortho‐Dihydroxycoumarins from the Fruits of Ficus nipponica

“…Ficus nipponica is a wild evergreen climbing plant native to Southeast Asia, bearing a fig‐like fruit with a diameter of 10 mm. During a continuing search for biologically active compounds from plants, we found that the crude MeOH extract of the fruits of F . nipponica showed antibacterial activity against Bacillus subtilis .…”

“…Ficus nipponica is a wild evergreen climbing plant native to Southeast Asia, bearing a figlike fruit with a diameter of 10 mm. During a continuing search for biologically active compounds from plants, [10] [11] we found that the crude MeOH extract of the fruits of F. nipponica showed antibacterial activity against Bacillus subtilis. Bioassay-guided fractionation of the crude extract led to the isolation of two new prenylated ortho-dihydroxycoumarins, designated as fipsomin (1) and fipsotwin (2), together with a known prenylated coumarin, apigravin (3).…”