Acylated glucosides

Sterols are present in concentrations of 0.2—0.4% in the oils. Compositions are given in Table 5. The sterols exist in the seeds in four forms free, estetified, nonacylated glucosides, and acylated glucosides. Soybeans contain a total of 0.16% of these sterol forms in the ratio of ca 3 1 2 2 (27) (see... 

Oryza sativa Epidermal cells Iso-orientin acylated glucosides too... 

Karikome, H., Ogawa, K., and Sashida, Y., New acylated glucosides of chalcone from the leaves of Bidens frondosa, Chem. Pharm. Bull, 40, 689, 1992. 

A second family of anthocyanin-derived pigments, present only at very low levels and exhibiting very low polarity (peaks 24, 26, 29 35), was also constituted by C4-substituted structurally rented anthocyanins (Table 2). They all exhibit a malvidin based skeleton and lower absorption maxima (504-514 nm) than the normal glucoside and acyl glucoside anthocyanins. Peak 32, having the same molecular mass (m/z 609) of peonidin-3-(6 -p-coumaroyl)glucoside... 

Katayama, M. M. Katoh. Soybean sterols during maturation of seeds i. Accumulation of sterols in the free form, fatty acid esters, acylated glucosides and non-acylated glucosides. Plant Cell Physiol. 1973,14, 681-688. 

Mechanisms of glycosyltransferases have been reviewed. l-/3-0-Acyl glucoside conjugates of phenylacetic acids have been synthesized, and their acyl migration and hydrolysis kinetics have been compared with the corresponding acyl glucoronides. ... 

Jalapinolic acid (4 acylated glucosides of it) Paeonol glucoside paeonifiorin Rotenone... 

Preparative scale biotransformation of betulinic acid (1) with resting-cell suspensions of Cunninghamella sp. NRRL 5695 resulted in the production in low yield of an acyl glucoside metabolite (Figure 28.49), which has been characterized as 28-0-p-o-glucopyranosyl-3p-hydroxy-lup-20(29)-en-28-oate (149) based on spectral and enzymatic... 

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). 

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