Glucopyranoside methyl

Ci3H24On Methyl 3-O-a-D-glucopyranosyl-a-D-glucopyranoside (methyl a-nigeroside) (MOGLPR)78... 

This class of acylating agents has thus far been but little used in carbohydrate chemistry. However, unimolar benzoylation of methyl 4,6-O-benzylidene-a-D-glucopyranoside, methyl 4,6-O-benzylidene-a-D-altropyranoside, and benzyl 4,6-O-benzylidene-jS-D-galactopy-ranoside with benzoyl cyanide gave good yields of the corre-... 

Methyl 1,3-dimethyl-5-oxobicyclo[2.2.2]octane-2-carboxylate, 66, 37 Methyl a-D-glucopyranoside Glucopyranoside, methyl, a-D- a-D-glucopyranoside, methyl (97-30-3), 65, 243... 

The reaction of methyl 6-deoxy-6-iodo-2,3,4-tri-0-methyl-a-D-glucopyranoside with methyl 2,3,4-tri-O-methyl-a-D-glucopyranoside 6-0-(S-sodium dithiocarbonate) affords1593 (methyl 2,3,4-tri-O-methyl-6-thio-a-D-glucopyranoside) (methyl 2,3,4-tri-O-methyl-a-D-glucopy-ranoside) 6,6 -dithiocarbonate. 

Aminoacyl groups were introduced into 2-0-, 3-0-, and 4-0-positions of methyl a-D-glucopyranoside, methyl a-D-galactopyranoside, and methyl a-D-mannopyrano-side. 

Several 0-aminoacyl sugars were prepared to study a relationship between taste and chemical structure. Methyl a-D-glucopyranoside, methyl a-D-galactopyranoside and methyl a-D-mannopyranoside were selected as sugar skeletons. As basic amino acids, esters of lysine, ornithine, a,Y-diaminobutyric acid, and a,p-diaminopropionic acid were introduced into 2-0-, 3-0-, and 4-0- positions of sugars leaving only 6-hydroxyl group free. The results of sensory analysis are list in Table VI. O-... 

Methyl-p-D-glucopyranoside Methyl-a-D-glucopyranoside Minor product Major product... 

Glucopyranoside, methyl 4,6-0-benzylidene-, a-D-, 65, 243 GLUCOPYRANOSIDE, METHYL 6-BROMO-6-DEOXY, 4-BENZOATE, a-D-, 65, 243 Glucopyranoside, methyl 4,6-0-(phenylmethylene)-, a-D-, 65, 243 Glucopyranosyl bromide, 2,3,4,6-tetraacetate, a-D-, 65, 236 Glucopyranosyl bromide tetraacetate, a-D-, 65, 236... 

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