The title compound (11 alpha, 12 beta-acetonyltenacigenin B 3-O-6-deoxy-3-O-methyl-beta-D-allopyranosyl-(1 -> 4)-beta-D-oleandropyranoside acetone solvate), C38H60O12 center dot C3H6O, was isolated from the stems of Marsdenia tenacissima. It contains five six-membered rings in chair and distorted half-chair conformations, two five-membered rings exhibiting envelope conformations and a three-membered ring. The unit cell (the asymmetric unit) also contains a disordered acetone molecule. The molecules are linked by two intermolecular O-(HO)-O-... hydrogen-bonds
Four xanthone O-glycosides, polygalaxanthones IV-VII were isolated from the roots of Polygala tenuif...
2.8. Marsdenieae We sampled 26 species from 10 of 27 genera of tribe Marsdenieae. Compounds fragm...
<div><p>Retrospinoside (<b>1</b>) is a new polyoxy pregnane glycoside which was isolated and charact...
A new C(21) steroid glycoside, 11 alpha-O-tigloyl-12-beta-O-acetyl tenacigenin B 3-O-beta-D-glucopyr...
From the stems of Marsdenia tenacissima two new polyoxypregnanes were isolated, their structures wer...
Four new pregnane glycosides, tenacigenosides A-D (1-4), along with six known pregnane aglycones and...
Six new polyoxypregnane glycosides, marstenacisside F1–F3 (1–3), G1–G2 (4–5) and H1 (6), as well as ...
Fig. 1. Chemical structures of 1–21 from M. tenacissima.Published as part of Song, Xiu-Qing, Tian, L...
Song, Xiu-Qing, Tian, Lin-Lin, Ye, Tao, Liu, Hu, Zhang, Hua (2023): Steroid glycosides from the root...
A new polyoxypregnane aglycone, tenacigenin D (<b>1</b>), and seven new C<sub>21</sub> steroid glyco...
A new pregnane, 12β-O-acetyl-20(S)-O-N-methylanthranilyl-3β, 8β, 14β, 17α-tetrol pregn-5-ene (12β-O-...
Fig. 5. ECD and UV spectra of 4.Published as part of Song, Xiu-Qing, Tian, Lin-Lin, Ye, Tao, Liu, Hu...
Fig. 3. Plausible mechanism of the intramolecular transacetylation of 10/11 and 12/13.Published as p...
Fig. 2. Key 2D NMR correlations for 1 and the ester fragments.Published as part of Song, Xiu-Qing, T...
Abstract: Six new polyoxypregnane esters [1-6] having sarcostin or deacetylmetaplexigenin as the agl...
Four xanthone O-glycosides, polygalaxanthones IV-VII were isolated from the roots of Polygala tenuif...
2.8. Marsdenieae We sampled 26 species from 10 of 27 genera of tribe Marsdenieae. Compounds fragm...
<div><p>Retrospinoside (<b>1</b>) is a new polyoxy pregnane glycoside which was isolated and charact...
A new C(21) steroid glycoside, 11 alpha-O-tigloyl-12-beta-O-acetyl tenacigenin B 3-O-beta-D-glucopyr...
From the stems of Marsdenia tenacissima two new polyoxypregnanes were isolated, their structures wer...
Four new pregnane glycosides, tenacigenosides A-D (1-4), along with six known pregnane aglycones and...
Six new polyoxypregnane glycosides, marstenacisside F1–F3 (1–3), G1–G2 (4–5) and H1 (6), as well as ...
Fig. 1. Chemical structures of 1–21 from M. tenacissima.Published as part of Song, Xiu-Qing, Tian, L...
Song, Xiu-Qing, Tian, Lin-Lin, Ye, Tao, Liu, Hu, Zhang, Hua (2023): Steroid glycosides from the root...
A new polyoxypregnane aglycone, tenacigenin D (<b>1</b>), and seven new C<sub>21</sub> steroid glyco...
A new pregnane, 12β-O-acetyl-20(S)-O-N-methylanthranilyl-3β, 8β, 14β, 17α-tetrol pregn-5-ene (12β-O-...
Fig. 5. ECD and UV spectra of 4.Published as part of Song, Xiu-Qing, Tian, Lin-Lin, Ye, Tao, Liu, Hu...
Fig. 3. Plausible mechanism of the intramolecular transacetylation of 10/11 and 12/13.Published as p...
Fig. 2. Key 2D NMR correlations for 1 and the ester fragments.Published as part of Song, Xiu-Qing, T...
Abstract: Six new polyoxypregnane esters [1-6] having sarcostin or deacetylmetaplexigenin as the agl...
Four xanthone O-glycosides, polygalaxanthones IV-VII were isolated from the roots of Polygala tenuif...
2.8. Marsdenieae We sampled 26 species from 10 of 27 genera of tribe Marsdenieae. Compounds fragm...
<div><p>Retrospinoside (<b>1</b>) is a new polyoxy pregnane glycoside which was isolated and charact...