Novel unsaturated acyclic phosphonate derivatives of purine and pyrimidine
申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0531597A1
公开(公告)日:1993-03-17
This invention relates to novel unsaturated acyclic phosphonate derivatives of certain purine or pyrimidines useful as anti-viral agents and as purine nucleoside phosphorylase inhibitors, to methods and intermediates useful for their preparation and to their end-use application as immunosuppressants, anti-lymphoma, anti-leukemic, anti-viral and antiprotozoal agents and also as agents used in conjunctive therapy to potentiate the efficacy of anti-viral nucleoside analogs which would otherwise become subject to the enzymative action of purine nucleoside phosphorylase.