Intermediates for preparing neuraminidase inhibitor conjugates

Details Intermediates for preparing neuraminidase inhibitor conjugates Intermediates for preparing neuraminidase inhibitor conjugates

2007-06-12

2007-06-12

Owens, Amelia A. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S517000, C549S414000

Reexamination Certificate

active

10488791

ABSTRACT:
Compounds of formula (I), methods for their preparation and their use in the manufacture of neuraminidase inhibitor conjugates. Wherein R represents as carboxylic acid protecting group; P1and P2can be the same or different and are selected from amine protecting groups; P3represents a protecting group for 1, 2 diols; and LG represents a leaving group

REFERENCES:
patent: 5919819 (1999-07-01), Andrews et al.
patent: 6242582 (2001-06-01), Reece et al.
Reece, PA et al ‘Preparaton of poly(neuraminic acids) as influenza virus neuraminidase inhibitors’ CA 129:28172 (1999).
Chemical Abstracts, Abstract 132: 23155 [& Andrews, D.M., et al: “Synthesis and influenza virus sialidase inhibitory activity of analogues of 4-guanidino-Neu5Ac2en (Zanamivir) modified in the glycerol side-chain”; European Journal of Medicinal Chemistry (1999), 34 (7&8), 563-574] See Chemical Abstracts Registry Nos. 252061-43-1, 232061-44-2, 252061-47-8, 252061-50-0.
Chemical Abstracts, Abstract 128:12878 [& AU 199737858 (723994) B2 (Sankyo Company, Limited) Sep. 7, 2000] See Chemical Abstracts Registry Nos. 203733-75-9, 203733-77-1, 203733-80-6, 203733-84-0, 203733-88-4, 203733-92-0, 203733-96-4.

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