(2010/02/07)
5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine
[1,2,4]triazolo[4,3-a]pyrazine
tert-butyl 5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate
3-bromo-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine-7-carboxylic acid tert-butyl ester
sodium methylate