1,3-Thiazol-5-ylmethyl ((1S,2S,4S)-1-benzyl-4-{[N-({ethyl[2-(2-isopropyl-1,3-thiazol-4-yl)ethyl]amino}carbonyl)-L-alanyl]amino}-2-hydroxy-5-phenylpentyl)carbamate AIDS-192439 AIDS192439