Title: Process for the preparation of imidazopyridazine derivatives and their use
Application Number: 85109195 Application Date: 1985.11.22
Publication Number: 1004663 Publication Date: 1986.11.05
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61K31/50;C07D487/04;C07H7/06
Applicant(s) Name: Glaxo Group Limited (GB) a British Company of Clar Address:
Inventor(s) Name: David John Knight; David Ian Carter Scopes; Richar
Attorney & Agent: LUO YINGMING CHEN JIZHUANG
Abstract:
    Compounds of the formula (I) wherein R1, R3 and R4 each independently represents a hydrogen atom or a protecting group; R2 represents a halogen atom or a group of formula -NRa Rb (where Ra and Rb, which may be the same or different, each represents a hydrogen atom or an alkyl group; or Ra and Rb may be linked to form, together with the nitrogen atom to which they are attached, a heterocyclic ring which optionally contains a further heteroatom); and their physiological equivalents as well as salts thereof with acids, exhibit antiviral activity against RNA viruses such as Influenza and/or are intermeidates for the preparation of antivirally active compounds.
Time: 8