1,2,4-Triazolo[4,3-a]pyrazine-7(8H)-carboxylic acid, 3-bromo-5,6-dihydro-, 1,1-dimethylethyl ester
1,1-Dimethylethyl 3-bromo-5,6-dihydro-1,2,4-triazolo[4,3-a]pyrazine-7(8H)-carboxylate
tert-Butyl 3-bromo-5,6-dihydro-1,2,4-triazolo[4,3-a]pyrazine-7(8H)-carboxylate