AIDS-005492 AIDS005492 N-[(1R)-2-Hydroxy-1-benzylethyl]-4-[(2-{(1R)(2-phenylacetylamino)[N-benzylcarbamoyl]methyl}(4S)-5,5-dimethyl(1,3-thiazolidin-4-yl))carbonylamino](3R,4R)-3-hydroxy-5-phenylpentanamide Penicillin deriv.