2-[3-(2-Amino-thiazol-4-ylmethyl)-3-methyl-ureido]-N-((1S,2R,3S,4S)-4-{2-[3-(2-amino-thiazol-4-ylmethyl)-3-methyl-ureido]-3-methyl-butanoylamino}-1-benzyl-2,3-dihydroxy-5-phenyl-pentyl)-3-methyl-butyramide AIDS-045773 AIDS045773 Diol-based HIV Protease inhibitor Derivative