英文同义词: | cefbuperazone side chain;D-Threonine, N-[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]-;N-[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]-D-threonine;(2R,3S)-2-(4-Ethyl-2,3-dioxo-1-piperazinecarboxamido)-3-hydroxybutanoic acid;(2R,3S)-2-[[4-ethyl-2,3-bis(oxidanylidene)piperazin-1-yl]car...;2-(4-Ethyl-2,3-dioxopiperazine-1-carboxamido)-3-hydroxybutanoic acid |