(2S,4S)-4-cyclohexyl-1-[2-[[(1S)-2-methyl-1-(1-oxopropoxy)propoxy]-(4-phenylbutyl)phosphoryl]-1-oxoethyl]-2-pyrrolidinecarboxylic acid
(2S,4S)-4-cyclohexyl-1-[2-[[(1S)-2-methyl-1-(1-oxopropoxy)propoxy]-(4-phenylbutyl)phosphoryl]-1-oxoethyl]-2-pyrrolidinecarboxylic acid is a proline derivative.