1(2H)-Pyrimidineacetamide, N-[(1S,3S,4S)-4-[[2-(2,6-dimethylphenoxy)acetyl]amino]-3-hydroxy-5-phenyl-1-(phenylmethyl)pentyl]tetrahydro-3-methyl-.alpha.-(1-methylethyl)-2-oxo-, (.alpha.1S)- AIDS-211886 AIDS211886