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What is the molecular formula of the compound with this IUPAC name 2-tert-butyl-3,4-dihydro-1H-pyrrolo[1,2-a]pyrazine;1-tert-butyl-3,4-dihydro-2H-pyrrolo[1,2-a]pyrimidine;1-tert-butyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine;3-tert-butyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyridine;6-tert-butyl-1,2,3,4-tetrahydroimidazo[1,5-a]pyrimidine;8-tert-butyl-1,2,3,4-tetrahydroimidazo[1,5-a]pyrimidine;5-tert-butyl-5,6,7,8-tetrahydroindolizine;6-tert-butyl-5,6,7,8-tetrahydroindolizine;7-tert-butyl-5,6,7,8-tetrahydroindolizine;1-tert-butyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine;3-tert-butyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine;2-tert-butyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrimidine;3-tert-butyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrimidine;4-tert-butyl-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrimidine ?
user
C154H252N28
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