D. Crestia et al., Rabbit muscle aldolase (RAMA) as a catalyst in a new approach for the synthesis of 3-deoxy-D-manno-2-octulosonic acid and analogues, J MOL CAT B, 11(4-6), 2001, pp. 207-212
A new approach leading to 3-deoxy-D-manno-2-octulosonic acid (KDO) and 4-de
oxy-KDO is described. The key step is the formation of the C-5-C-6 bond cat
alysed by fructose-1,6-bisphosphate aldolase, which controls the stereochem
istry of these two centres. The important step of the aldehyde substrates (
la, Ib, Ic) synthesis is the Barbier reaction of ethyl-bromomethylacrylate
or bromomethylacrylonitrile with the monoacetal of glyoxal in the presence
of indium. (C) 2001 Elsevier Science B.V. All rights reserved.