Carb-26. Intramolecular Anhydrides

5-A/-Acetyl-4,8,9-tri-0-acetyl-a-neuraminic acid (ot-Neu4,5,8,9Ac4) 2-Carb-26. Intramolecular anhydrides [Pg.118]

An intramolecular ether (commonly called an intramolecular anhydride), formally arising by elimination of water from two hydroxy groups of a single molecule of a monosaccharide (aldose or ketose) or monosaccharide derivative, is named by attaching the (detachable) prefix anhydro- preceded by a pair of locants identifying the two hydroxy groups involved. [Pg.118]

Detachable prefixes are cited in alphabetical order along with any substituent prefixes. Examples [Pg.118]

5-Acetamido-2,6-anhydro-3,5-dideoxy-D-g/ycero-D-ga/acfo-non-2-enonic acid [Pg.119]

The compounds usually known as monosaccharide anhydrides or glycose anhydrides (earlier glycosans ), formation of which involves the anomeric hydroxy group, are named by the same procedure. In these cases the order of preference of ring size designators is pyranose furanose septanose. However, three- or four-membered rings should normally be cited as anhydro if there is a choice. [Pg.119]

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