Pyrimidine-5-carboxylic acid → Pyrimidine-5-carboxylic acid {4-[3-cyclopropylmethyl-1-(2-fluorobenzyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-ylmethyl]-phenyl}-methyl-amide

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This compound was prepared by a method similar to that described in example 79 except that pyrimidine-5-carboxylic acid was used in place of N-acetyl-6-amino-2-pyridine carboxylic acid, the reaction was performed using 0.75 equivalents of 3-cyclopropylmethyl-8-[4-(methylamino)-benzyl]-1-(2-fluorobenzyl)-3,7-dihydropurine-2,6-dione and 1.5 equivalent of 4-dimethylaminopyridine was added as the final reagent to the reaction mixture. Purification was performed by chromatography using silica eluted with 94:6 ethyl acetate/methanol followed by trituration with hot acetonitrile to give the product as a colorless solid (72%). MS, m/z(M+H)=540.2161.

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