2-[4-[4-Chloro-2-[(2-hydroxyethyl)(1-methyl-1-phenylethyl)carbomoyl]phenyl]-3-hydroxybutyl]-N-(1-ethylcyclopentyl)-N-(2-hydroxyethyl)benzamide alcohol AG1132 analog AIDS-028319 AIDS028319 cPen-Butamide, 2OHBu deriv.