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|Abstract:||[ 3H]-Imidazo[ 5,1-d] -1,2,3,5-tetrazin-4-one derivatives of the formula: ##STR1## wherein R.sup.1 represents hydrogen, or an alkyl, alkenyl or alkynyl group containing up to 6 carbon atoms, each such group being unsubstituted or substituted by from one to three substituents selected from halogen atoms, alkoxy, alkylthio, alkylsulphinyl and alkylsulphonyl groups containing up to 4 carbon atoms, and optionally substituted phenyl groups, or R.sup.1 represents a cycloalkyl group containing from 3 to 8 carbon atoms, and R.sup.2 represents a carbamoyl group optionally N-substituted by one or two groups selected ftom alkyl and alkenyl groups containing up to 4 carbon atoms, and cycloalkyl groups containing 3 to 8 carbon atoms, are new therapeutically useful compounds possessing antineoplastic and immunomodulatory activity.|
|Inventor(s):||Lunt; Edward (Norfolk, GB2), Stevens; Malcolm F. G. (Birmingham, GB2), Stone; Robert (Montrose, AU), Wooldridge; Kenneth R. H. (Lincolnshire, GB2), Newlands; Edward S. (London, GB2)|
|Assignee:||Cancer Research Campaign Technology Limited (London, GB2)|
Patent Claim Types:|
see list of patent claims
|Compound; Composition; Use;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|United Kingdom||8125791||Aug 24, 1981|
|Country||Document Number||Publication Date|
|South Africa||8206120||Jul 27, 1983|
|South Africa||9400248||Jul 13, 1994|
|World Intellectual Property Organization (WIPO)||9415615||Jul 21, 1994|
|United States of America||5731304||Mar 24, 1998|
|Taiwan||414710||Dec 11, 2000|
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