Journal ArticleDOI
New Coumarins from Pilocarpus goudotianus.
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TLDR
The leaves of PILOCARPUS GOUDOTIANUS afforded in addition to eight known coumarins three new ones, donatin, alloxanthoxyletol, and (+)-elisin, which were elucidated on the basis of spectroscopic evidence and chemical derivatives.Abstract:
The leaves of Pilocarpus goudotianus afforded in addition to eight known coumarins three new ones, donatin, alloxanthoxyletol, and (+)-elisin. The structures were elucidated on the basis of spectroscopic evidence and chemical derivatives.read more
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Book ChapterDOI
Naturally Occurring Plant Coumarins
TL;DR: 7-hydroxycoumarin [umbelliferone, (2)], one of the most widely distributed coumarins, is often regarded as the parent, in a structural sense and also biogenetically, of a large number of the structurally more complex coumarin.
Journal ArticleDOI
α-Glucosidase and α-Amylase Inhibitors from Arcytophyllum thymifolium
Luigi Milella,Stella Milazzo,Marinella De Leo,Mariela Beatriz Vera Saltos,Immacolata Faraone,Tiziano Tuccinardi,Margherita Lapillo,Nunziatina De Tommasi,Alessandra Braca +8 more
TL;DR: Three new coumarins, a prenylated flavanone, and two iridoids, together with 17 known secondary metabolites, were isolated from the aerial parts of Arcytophyllum thymifolium and the structures of the new compounds were elucidated on the basis of their spectroscopic data.
Journal ArticleDOI
Efficient syntheses of 6-prenylcoumarins and linear pyranocoumarins: Total synthesis of suberosin, toddaculin, O-methylapigravin (O-methylbrosiperin), O-methylbalsamiferone, dihydroxanthyletin, xanthyletin and luvangetin
TL;DR: In this paper, the synthesis of 6-prenylcoumarins (1a, 2c and 3a) and their derivatives (1c, 1d, 1e, 2d and 3b) using tandem Claisen rearrangement and Wittig reaction is described.