Twelve new withanolides were isolated from the aerial part of Jaborosa rotacea: five had a spiranoid delta-lactone ( 1- 5); one contained a 26,12-delta-lactone and a C-12-C-23 bond ( 6); five corresponded to trechonolide-type ...

Twelve new withanolides were isolated from the aerial part of Jaborosa rotacea: five had a spiranoid δ-lactone (1-5); one contained a 26,12-δ-lactone and a C-12-C-23 bond (6); five corresponded to trechonolide-type ...

Since the isolation of the first withanolides in the mid-1960s, over 600 new members of this group of compounds have been described, with most from genera of the plant family Solanaceae. The basic structure of withaferin ...

Seven new withanolides, salpichrolides O−U (1−7), the known 2,3-dihydrosalpichrolide B (9), a substance not previously isolated from a natural source, and three known compounds, salpichrolide D (8), salpichrolide A (10), ...

Six new withanolides (1−6) were isolated from the aerial parts of Jaborosa bergii plants and characterized by spectroscopic methods (1D and 2D NMR, MS). Five of the new compounds presented a novel norbornane-type structure ...