Abstract
Three new compounds, a dihydrobenzofuran (coumaran) derivative (compound 1) and two pterocarpans (compounds 2 and 3) were isolated from a root extract of Calicotome villosa growing wild in Corsica. Their structures were elucidated using 1D and 2D NMR spectroscopy and MS/MS as 2-(1-methylethenyl)-5-hydroxy-6-carbomethoxy-2,3-dihydro-benzofuran, 4,9-dihydroxy-3-methoxy-2-dimethylallylpterocarpan, and 4,9-dihydroxy-3′,3′-dimethyl-2,3-pyranopterocarpan.
Highlights
IntroductionCalicotome villosa (Poir.) Link. (Fabaceae) is a shrub that can reach 2 m in high, with grey-tomentose stems and sharp terminations, villous pods, trifoliate and oval leaves, and yellow and grouped flowers during the spring season [1,2]
Calicotome villosa (Poir.) Link. (Fabaceae) is a shrub that can reach 2 m in high, with grey-tomentose stems and sharp terminations, villous pods, trifoliate and oval leaves, and yellow and grouped flowers during the spring season [1,2]. It is very common in the Mediterranean area and in Corsica Island, where it grows near the sea, while the subspecies C. villosa subsp. intermedia is distributed especially in the North of Africa and Spain [3]
In continuation of our investigations on the constituents of Corsican aromatic and medicinal plants, we report in this paper on the isolation and structural elucidation of three new compounds contained in C. villosa roots
Summary
Calicotome villosa (Poir.) Link. (Fabaceae) is a shrub that can reach 2 m in high, with grey-tomentose stems and sharp terminations, villous pods, trifoliate and oval leaves, and yellow and grouped flowers during the spring season [1,2]. (Fabaceae) is a shrub that can reach 2 m in high, with grey-tomentose stems and sharp terminations, villous pods, trifoliate and oval leaves, and yellow and grouped flowers during the spring season [1,2] It is very common in the Mediterranean area and in Corsica Island, where it grows near the sea, while the subspecies C. villosa subsp. Phytochemicals that belong to various families have been isolated and identified in C. villosa extracts from different parts of the plant, including alkaloids, flavonoids, steroids, anthraquinones, and phenol derivatives [2,3,4,7,8,9,10,11,12].
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