ABSTRACT
Phebaclavin I, a novel 3-prenylated coumarin, was isolated from the aerial parts of Phebalium aff. tuberculosum (Rutaceae) together with five known related compounds, Phebaclavin A, B, D, G, H. The structure of phebaclavin I was established by spectroscopic methods. Several other known coumarins were obtained, including trichoclin acetate, a furocoumarin isolated for the first time from a natural source, but previously described from acetylation of trichoclin.
Subject(s)
Coumarins/isolation & purification , Rutaceae/chemistry , Acetylation , Coumarins/chemistry , Molecular Structure , Spectrum Analysis/methodsABSTRACT
Phebarudol, a novel prenylated p-coumarate, was isolated from the twigs of Phebalium rude Bartl. subsp. amblycarpum (F. Muell.) P. G. Wilson (Rutaceae) together with the two already known related compounds, werneria chromene and methyl demethoxywutaiensate. The structure of phebarudol was established by spectroscopic methods.
Subject(s)
Coumaric Acids/chemistry , Plant Extracts/chemistry , Rosaceae/chemistry , Australia , Coumaric Acids/isolation & purification , Models, Molecular , Molecular Conformation , New Zealand , Plant Stems/chemistry , Protein Prenylation , Rosaceae/classificationABSTRACT
The aerial parts of Phebalium clavatum yielded eight new 3-prenylated coumarins, phebaclavin A-H (1-8). Their structures were established on the basis of their NMR and mass spectral data. In addition, seven known compounds were also isolated, including two 8-geranyloxy linear furocoumarins previously obtained from Phebalium tuberculosum ssp. megaphyllum, included in the same section of the genus.
