(1-{3-[2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-naphthalen-1-yl-propanoylamino]-1-hydroxymethyl-propylcarbamoyl}-2-naphthalen-1-yl-ethyl)-carbamic acid 9H-fluoren-9-ylmethyl ester AIDS-095990 AIDS095990