Sitosterol P-D-glucoside

The mature seeds of C. speciosus were reported to contain an appreciable amount of diosgenin [123]. Numerous steroidal saponins were isolated from the seeds [124]. Their structures were elucidated as P-sitosterol-P-D-glucoside, prosapogenin A and B of dioscin, dioscin, gracillin, 3-0-[a-L-rhamnopyranosyl(l —> 2)-P-D-glucopyranosyl]-26-0-[P-D-glucopyranosyl]-22-a - methoxy - (25/ ) - furost-5 - en-3p, 26-diol... 

The rhizomes of C. lacerus were found to contain an appreciable amount of diosgenin [129]. The steroidal saponins of the rhizomes were identified as P-sitosterol-P-D-glucoside, prosapogenin A of dioscin, dioscin and gracillin [129]. 

From the ether-soluble fraction, Takahashi etal. 134, 135) isolated sitosterol-P-D-glucoside, sitosterol, p-elemene (96), eremophilene (97) and a new polyacetylenic alcohol named panaxynol (98), the structure of which was elucidated as heptadeca-l,9(Z)-diene-4,6-diyn-3-ol by degradative and synthetic procedures. It is identical with carotatoxin from carrots 136) and falcarinol from Falcaria vulgaris 137). Recently two other polyacetylenic alcohols, 9,10-epoxy-3-hydroxyheptadeca-l-en-4,6-diyne [(99), panaxydol] 138) and heptadeca-l-en-4,6-diyn-3,9-diol (100) 139) were isolated from Ginseng roots by Wrobel et al. 

Sitosterol, P, 6-0-lauryl-P-D-glucoside Fr Sitosterol, P, 6-0-myristyl-P-D-glucoside Fr Sitosterol, P, diglucoside Fr ... 

P-Sitosterol-3-O-P-D- glucoside (phytosterol glycoside) Widespread Caryophyllus Jlos (Myrtaceae) PEP (48 pM) [118]... 

Sitosterol 3-C -(2 -0-acetyl-6 -0-stearoyl)-P-D-xylopyranoside and sitosterol 3- -(2 -0-stearoyl)-P-D-xylopyranoside have been isolated from the aquatic plant Pistia stratiotes and the highly piscicidal factors of the flower Edgeworthia chrysantha have been identified as sitosterol 3-0-(6 -0-linoleoyl)- and 3-0-(6 -0-linolenoyl)-p-D-glucoside. ... 

Phytosterols and their glucosides are common constituents of ferns. Acylated glucosides such as 820 (392) also occur in all ferns. From Pteris inaequalis var. aequata which contains 2-deoxy-D-glucose (835) abundantly, 2-deoxy-D-glucoside of P-sitosterol (821) has been isolated together with its P-D-glucoside (289). 

Dymicky, M. and R.L. Stedman Composition smdies on tobacco. I. P-Sitosterol D-glucoside from flue-cured tobacco leaves Tob. Sci. 2 (1958) 99-101. 

Peng L., Kawagoe Y, Hogan P., and Delmer D. 2002. Sitosterol-P-glucoside as primer for cellulose synthesis in plants. Science 295 147-150. 

Bouic, P.J.D. Etsebeth, S. Liebenberg, R.W. Albrecht, C.F. Pegel, K. van Jaarsveld, P.P. 1996. Beta-sitosterol and beta-sitosterol glucoside stimulate human peripheral blood lymphocyte proliferation Implications for their use as an immunomodulatory vitamin combination. Int. J. Immunopharmacol. 18 693 700. 

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