Sugars, a- and

Figure 10.21 Aldolase-catalyzed asymmetric synthesis of uncommon L-configured sugars (a), and selected examples of carbohydrate-related product structures that are accessible by enzymatic aldolization (b).

Fig. 9. — (a) H-N.m.r. Spectrum (270 MHz, Resolution-enhanced) of Beef-lung Heparin in D20 (40%, w/v) at 90° (b) Computer-simulated Spectrum, with Calculated, Interproton Coupling-Constants (/, at 35°) for the Amino Sugar (A) and L-Iduronic acid (I) Residues.84... 

Fig. 6.3. (A) Changes in the levels of starch and dextrin ( ), dextrin (o), free sugars (a) and extracted protein (v) in the cotyledons of the smooth pea (cv. Alaska). Time of radicle elongation was not reported in these studies. (B) Changes in starch phosphorylase (o) and amylase ( ) enzymes in cv. Early Alaska. After Juliano and Varner, 1969 [79]...

Scheme 19.8 Syntheses for a furanoid sugar a- and co-amino acid ester based upon 2-OGcA. Reagents and conditions a) TrCl, DMAP, AC2O, pyridine b) HCl, CH Cl c) Ac O, pyridine d) TMSN3, SnCl, CH Cl e) H /PdC f) TsCl, pyridine g) NaN3, DMF h) i) NaOMe/MeOH, Amberlite IR 120 ii) H /Pd-C...

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