155213-67-5 2,4,7,12-Tetraazatridecan-13-oic acid, 10-hydroxy-2-methyl-5-(1-methylethyl)-1-(2-(1-methylethyl)-4-thiazolyl)-3,6-dioxo-8,11-bis(phenylmethyl)-, 5-thiazolylmethyl ester, (5S-(5R*,8R*,10R*,11R*))- 5-Thiazolylmethyl ((alphaS)-alpha-((1S,3S-1-hydroxy-3-((2S)-2-(3-((2-isopropyl-4-thiazolyl)methyl)-3-methylureido)-3-methylbutyramido)-4-phenylbutyl)phenethyl)carbamate A-84538 ABT-538 Abbott 84538 DRG-0244 HSDB 7160 Kaletra Norvir RITONAVIR Ritonavir [USAN]