AIDS-028115 AIDS028115 Aminodiol t-hexanamide deriv. [3-[[3-[(3,3-Dimethyl-2(R)-hydroxy-1-oxobutyl)amino]-2-hydroxy-4-phenylbutyl]amino]-2-hydroxy-1-(phenylmethyl)propyl]carbamic acid, 1,1-dimethylethyl ester