You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl 4-[4-[1-hydroxy-7-methoxy-2,8-bis(3-methylbut-2-enyl)-6-[4-[4-[(2-methylpropan-2-yl)oxycarbonyl]piperazin-1-yl]butoxy]-9-oxoxanthen-3-yl]oxybutyl]piperazine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C50H74N4O10
assistant