7,7-Dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one
3,4-Dihydropyrrolo[1,2-a]pyrazin-1(2H)-one
1,2,3,4-Tetrahydro-1-methylpyrrolo[1,2-a]pyrazine
1,2,3,4-Tetrahydropyrrolo[1,2-a]pyrazine
4-Methyl-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one
7-Bromo-3,4-dihydropyrrolo[1,2-a]pyrazin-1(2H)-one
tert-Butyl 6-formyl-3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate
tert-Butyl 3,4-dihydropyrrolo[1,2-a]pyrazine-2(1H)-carboxylate
