AG1132 analog AIDS-028306 AIDS028306 N-tBu-Benzamide, 2OHBu deriv. N-tert-Butyl-N-(2-hydroxyethyl)-2-[3-hydroxy-4-[2-[(2-hydroxyethyl)(1-methyl-1-phenylethyl)carbamoyl]phenyl]butyll]benzamide