英文别名Tetrahydro-3-oxo-3H-oxazolo[3,4-a]pyrazine-7(1H)-carboxylic acid 1,1-dimethylethyl ester; tert-Butyl 3-oxotetrahydro-3H-oxazolo[3,4-a]pyrazine-7(1H)-carboxylate; 3H-Oxazolo[3,4-a]pyrazine-7(1H)-carboxylic acid, tetrahydro-3-oxo-, 1,1-dimethylethyl ester; tert-butyl 3-oxo-5,6,8,8a-tetrahydro-1H-[1,3]oxazolo[3,4-a]pyrazine-7-carboxylate; 7-Boc-3-oxotetrahydro-3H-oxazolo[3,4-a]pyrazine