|
|
7-tert-butyl 3-Methyl 5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-3,7(8H)-dicarboxylate |
7-tert-butyl 3-Methyl 5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-3,7(8H)-dicarboxylate |
|
|
tert-butyl 2,4-dioxo-1,2,3,4,5,6-hexahydropyrido[3,4-d]pyriMidine-7(8H)-carboxylate |
2,4-二氧代-1,2,3,4,5,6-六氢吡啶并[3,4-D]嘧啶-7(8H)-甲酸叔丁酯 |
|
|
|