Abstract
A new characteristic steroidal glycoside possessing a hydroxyl group at C-23, inunigroside A (1), was isolated from the withered berries of Solanum nigrum L. On the basis of spectroscopic analysis, the structure of 1 was characterized as (5α,22S,23S,25R)-3β,23-dihydroxyspirostane 3-O-β-lycotetraoside. Next, a major steroidal sapogenol, (22R, 25S)-3β,15α-dihydroxy-spirost-5-ene (3), was obtained from the acid hydrolysate of the methanolic extract of the aerial parts of Solanum jasminoides L. A new bisdesmoside, 3-O-β-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl-(1→4)-β-d-glucopyranosyl (22R,25S)-3β,15α-dihydroxyspirost-5-ene 15-O-α-l-rhamnopyranoside (4), named jasminoside A, was isolated from the methanolic extract of S. jasminoides.
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Ohno, M., Murakami, K., El-Aasr, M. et al. New spirostanol glycosides from Solanum nigrum and S. jasminoides . J Nat Med 66, 658–663 (2012). https://doi.org/10.1007/s11418-012-0637-z
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DOI: https://doi.org/10.1007/s11418-012-0637-z