PROBLEM TO BE SOLVED: To provide novel HIV protease inhibitors, pharmaceutical compositions thereof, processes for making the novel HIV protease inhibitors, and methods for inhibiting and treating an HIV infection.SOLUTION: The invention is related to compounds of formula I, or a pharmaceutically acceptable salt, solvate, ester, and/or phosphonate thereof, compositions containing such compounds.COPYRIGHT: (C)2013,JPO&INPIT【課題】新規HIVプロテアーゼ阻害剤、その薬学的組成物、作製するためのプロセスおよびHIV感染症を阻害し、処置するための方法の提供。【解決手段】式Iの化合物:またはその薬学的に許容可能な塩、溶媒和物、エステルおよび/もしくはホスホネート、そのような化合物を含む組成物。【選択図】なし