Sialic acid derivatives having active carbonyl group

Details Sialic acid derivatives having active carbonyl group Sialic acid derivatives having active carbonyl group

1987-12-21

1990-04-17

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 41, 536 179, 536 53, 536 182, 530363, 530322, C07H 504, C07H 1500, C07G 300, A61K 31715

Patent

active

049181777

ABSTRACT:
A sialic acid derivative having an active carbonyl group represented by the formula [I]: ##STR1## wherein R.sup.1 represents hydrogen or acetyl group; R.sup.2 represents hydrogen, a metal or a lower alkyl group; R.sup.3 represents hydrogen, hydroxyl group, or a residue removed hydrogen from an alcohol portion of an active ester; Ac represents acetyl group; and n is 1 to 20, respectively. This sialic acid derivative [I] can be utilized as a starting material for various complex having a sialic acid in the molecule since it has an active carbonyl group in the molecules so that it shows high reactivity.

REFERENCES:
patent: 4694076 (1987-09-01), Ogawa et al.
patent: 4797477 (1989-01-01), Yoshimura et al.

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