You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule methyl (4aS,8R,8aR)-2-(4-bromophenyl)sulfonyl-6-[tert-butyl(dimethyl)silyl]oxy-8-[methoxycarbonyl(prop-2-enyl)amino]-1-oxo-4,4a,5,8-tetrahydro-3H-isoquinoline-8a-carboxylate .
user
C28H39BrN2O8SSi
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