Antiviral phosphonomethoxyalkylene purine and pyrimidine derivat

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Phosphorus containing other than solely as part of an...

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514 86, 544243, 544244, A61K 31675, C07F 96512

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active

058542280

ABSTRACT:
A series of compounds of Formula I which have anti-tumor activity, and are useful in treating viral infections, their compositions and use. ##STR1## In Formula I B is a purine or pyrimidine base; alk.sub.1 alk.sub.2 and alk.sub.3 are chemical bonds or alkylene groups; Q is hydrogen or hydroxyl; and R.sub.1 -R.sub.4 are hydrogen or alkyl.

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