RETROVIRAL PROTEASE INHIBITING COMPOUND

摘要

PROBLEM TO BE SOLVED: To provide a new compound as an HIV protease inhibiting compound, and to provide a production intermediate thereof. SOLUTION: A compound represented by formula (1) is provided. Wherein, R1 and R2 are independently selected from the group consisting of an alkyl, a cycloalkyl and an arylalkyl; R3 is a lower alkyl, a hydroxyalkyl, or a cycloalkylalkyl; R4 is an aryl or a heterocycle; R5 is a 5-7 membered ring containing nitrogen atom and having a hetero atom directly bonded with the heterocycle; and L1 is a bivalent bonding group such as -O- or -S-. COPYRIGHT: (C)2008,JPO&INPIT