| abstract |
(57) [Summary] (Correction) [Constitution] The following formula (I) [Wherein R 1 , R 2 , R 3 and R 4 are hydrogen, nitro, halogen, etc., R 5 is a group of the formula —CO—B, R 6 and R 7 are hydrogen, alkyl, etc., R 8 and R 9 Represents halogen, cyano, nitro, etc.]. A substituted piperazine, Its manufacturing method and its use as an antiretroviral agent. [Effect] The above compound is effective as an active substance of a drug, and a compound useful for diagnosis and research can be obtained. |