Galactopyranose 3- amino-1,6-anhydro-3-deoxy

Galactostatin (5-amino-5-deoxy-D-galactopyranose), the galacto-isomer of nojirimycln, has been isolated as a Streptomyces lydlcus fermentation product and shown to be a 3-galactosidase inhibitor., 8-Anhydro-N-acetyl-neuraminic acid (1) has been isolated from edible birds nest and shown to exist in 2 tautomeric forms in solution. ... 

M. Cerny, I. Cerny, and T. Trnka, Ammonolysis of l,6-anhydro-2,4-di-0-tosyl-/l-D-glucopyranose and l,6 3,4-dianhydro-2-0-tosyl-/l-D-galactopyranose preparation of 4-amino-l,6-anhydro-4-deoxy-/J-D-manno- and -/1-D-altropyranose, Carbohydr. Res., 67 (1978) 33-41. 

M. Cerny, O. Julakova, and J. Pacak, Preparation of 2-amino-1,6-anhydro-2-dcoxy-/i-n-glucopyranose and 2-amino-1,6 3,4-dianhydro-2-deoxy-/3-D-galactopyranose, Collect. Czech. Chem. Commun., 39 (1974) 1391-1396. 

Anhydro 3-Amino-l, 6-anhydro-3-deoxy- -D-galactopyranose C6H11NO4 161.157 Cryst. (MeOH/Me2CO) (as hydrochlo-ridd- Mp 180-185° dec. (hydrochloride). [a]g -9 (c, 1.0 in H2O). 

Amino-l,6-anhydro-3-deoxy-p-D-galactopyranose, A-207 2-Amino-l,6-anhydro-2-deoxygalactose p-D-Pyranose-/orm, A-127... 

Hydrolysis of 2-amino-1,6 3,4-dianhydro-2-deoxy-j8-D-galactopyranose (142) with alkali gave, in addition to 2-amino-l,6-anhydro-2-deoxy-j3-D-glucopyranose, the isomeric epimino-sugar (143), although this isomerization did not occur at room temperature (c/. l,6 3,4-dianhydro-jS-D-galactopyranose). 

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