3-Azabicyclo[3.3.1]nonan-7-one deriv. 5(R/S)-[2-Methoxy-(1',1-biphenyl-5-yl)]methyl-9(R/S)-hydroxy-1(R/S)-1-hydroxymethyl-3-(2-methylpropyl)-3-azabicyclo[3.3.1]nonan-7-one AIDS-057772 AIDS057772