Zanamivir

BeschreibungZanamivir was launched as Relenza in Australia for treatment of human influenza A and B virus infections. Zanamivir (4-guanidino-Neu5Ac2en) can be obtained by several similar ways, for instance in seven step synthesis starting from N-acetyI-D-neuraminic acid. Mechanistically, Zanamivir is a potent and specific inhibitor of neuraminidase (or sialidase), a key viral surface glycohydrolase essential for viral replication and disease progression by catalyzing the cleavage of terminal sialic acid residues from the glycoprotein. The in vitro activity of Zanamivir against a wide variety of influenza A and B strains was demonstrated in different model systems; its activity against clinically relevant isolates of influenza virus, with IC50 values ranging from 0.005 to 15 pM was superior to those of amantadine and rimantadine.

VerwendenZANAMIVIR HYDRATE is a sialic acid analog that inhibits neuraminidase release of newly replicated influenza virus particles. It has been shown to selectively inhibit the growth of influenza A and B viruses in plaque reduction assays with IC50 values ranging from 5 to 14 nM and to directly inhibit influenza A and B virus neuraminidases with IC50 values ranging from 0.6 to 7.9 nM in vitro. The efficacy and tolerabilbity of zanamivir has also been established in clinical trial.[Cayman Chemical]