New withanolides from salpichroa origanifolia

From whole plants of Salpichroa origanifolia, collected before the flowering stage, three new withanolides were isolated and their structures established by spectroscopic and chemical methods. Two of them, salpichrolides B [2] and C [3], contain a six-membered aromatic D ring, while the third one, s...

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Autores principales: Veleiro, A.S., Burton, G., Bonetto, G.M., Gil, R.R., Oberti, J.C.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01633864_v57_n12_p1741_Veleiro
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Sumario:From whole plants of Salpichroa origanifolia, collected before the flowering stage, three new withanolides were isolated and their structures established by spectroscopic and chemical methods. Two of them, salpichrolides B [2] and C [3], contain a six-membered aromatic D ring, while the third one, salpichrolide D [4], has a five-membered D ring with a Δ16-15 ketone system. © 1994, American Chemical Society. All rights reserved.