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A series of 5-(5,6)-dihydrouracil substituted 8-hydroxy-[1,6]naphthyridine-7-carboxylic acid 4-fluorobenzylamide inhibitors of HIV-1 integrase and viral replication in cells
Introduction of a 5,6-dihydrouracil functionality in the 5-position of
N-(4-fluorobenzyl)-8-hydroxy-[1,6]naphthyridine-7-carboxamide
1 led to a series of highly active HIV-1 integrase inhibitors. These compounds displayed low nanomolar activity in inhibiting both the strand transfer process of HIV-1 integrase and viral replication in cells. Compound
11 is a 150-fold more potent antiviral agent than
1, with a CIC
95 of 40
nM in the presence of human serum. It displays good pharmacokinetics when dosed in rats and dogs.