You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-[3-[3-(3-aminophenyl)-1-methylpyrazol-4-yl]imidazo[1,2-a]pyrazin-8-yl]-3-N,3-N-dimethylbenzene-1,3-diamine;1-N-[3-(1-benzylpyrazol-4-yl)imidazo[1,2-a]pyrazin-8-yl]-3-N,3-N-dimethylbenzene-1,3-diamine;5-bromoimidazo[1,2-a]pyrazin-8-amine;5-bromo-3-(1-methylpyrazol-4-yl)imidazo[1,2-a]pyrazin-8-amine;3-N,3-N-dimethyl-1-N-[3-[1-(2-methylpropyl)pyrazol-4-yl]imidazo[1,2-a]pyrazin-8-yl]benzene-1,3-diamine;3-(1-methylpyrazol-4-yl)-6-phenylimidazo[1,2-a]pyrazin-8-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C101H100Br2N38
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