Among a large number of HIV-1 integrase (IN) inhibitors, the 8-hydroxy-[1, 6] naphthyridines (ie, L-870,810) were one of the promising class of antiretroviral drugs developed by Merck Laboratories. In spite of its remarkable potency and efficacy, unfortunately upon completion of phase I clinical studies, development of L-870,810 was halted. Because of its desirable pharmacological and pharmaceutical properties we were intrigued to design novel ...