Sialic acid derivatives having active carbonyl group
US4918177A · kind A · utility
6Cited by
2References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Dec 21, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.