Design, synthesis and pharmacological evaluation of HIV-1 reverse transcriptase inhibition of new indolin-2-ones

The design, synthesis and anti HIV-1 replication inhibition of 3-(cyclopropylethynyl)-3-hydroxy-indolin-2ones,analogues of efavirenz (Sustiva (TM)), are described. Different substituted isatins were used to generate final products that contain pharmacophoric features for RT inhibition, such as the oxoindole and cyclop ropylethynyl groups. The suitability of the indolin-2-one ring in the planned compounds in replacement to the benzoxazinone ring of efavirenz was proven, since compound 15 presented a greater activity than efavirenz against HIV-1 replication and was not significantly cytotoxic.