Siglec inhibitors

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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Details

C514S023000, C549S419000

Reexamination Certificate

active

07820714

ABSTRACT:
The invention relates to Siglec inhibitors that have an increased affinity for the receptor molecule. The Siglec inhibitors provided by the invention are preferably selective of a given Siglec molecule. The invention further relates to a method for producing Siglec inhibitors and to a method for increasing the binding selectivity for a given Siglec molecule. The invention also relates to pharmaceutical compositions that contain the Siglec inhibitors and to medical indications for the Siglec inhibitors.

REFERENCES:
patent: WO 92/22301 (1992-12-01), None
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Crocker et al., “The Siglec Family of I-Type Lectins,”Carbohydrates in Chemistry and Biology, Ernst et al. (Ed.) (Wiley-VCH, Weinheim) 4: 579-595 (2000).
Crocker et al., “Siglecs in the Immune System,”Immunology, 103: 137-145 (2001).
Kelm, “Ligands for Siglecs,”Mammalian Carbohydrate Recognition Systems, P.R. Crocker (Ed.) (Springer, Berlin ) 153-176 (2001).
Li et al., “Cloning and Characterization of Siglec-10, a Novel Sialic Acid Binding Member of the Ig Superfamily, from Human Dendritic Cells,”J. Biol. Chem., 276(30): 28106-28112 (2001).
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Norton et al., “The Sythesis of C-9 Modified Derivatives of the α-Methyl Glycoside of KDN Methyl Ester,”J Carbohydrate Chemistry, 20(2): 227-238 (2001).
Troncoso et al., “Specificity of the Binding Site of the Sialic Acid-binding Lectin from Ovine Placenta, Deduced from Interactions with Synthetic Analogues,”Glycoconjugate Journal, 17: 705-711 (2000).
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Sparks et al., “Neuraminidase-Resistant Hemagglutination Inhibitors: Acrylamide Copolymers Containing a C-Glycoside ofN-Acetylneuraminic Acid”,J. Med. Chem.36, pp. 778-783 (1993).

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