英文同义词: | tert-butyl (9aS)-7-oxo-octahydro-1H-[1,4]diazino[1,2-a]pyrazine-2-carboxylate;2H-Pyrazino[1,2-a]pyrazine-2-carboxylic acid, octahydro-7-oxo-, 1,1-dimethylethyl ester, (9aS)-;tert-Butyl (S)-7-oxooctahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxylate |