1N,4N-Di[1-carboethoxy-2-phenyl-(1S)-ethyl]-2,3-dihydroxy-(2S,3S)-butandiamide 1N,4N-Di[1-carboethoxy-2-phenyl-(1S)-ethyl]-2,3-dihydroxy-(2S,3S)-butanediamide AIDS-163245 AIDS163245