You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tri(propan-2-yl)-[2-[19-[2-tri(propan-2-yl)silylethynyl]-2,17-diazaheptacyclo[16.12.0.03,16.04,13.06,11.020,29.022,27]triaconta-1(30),2,4,6,8,10,12,14,16,18,20,22,24,26,28-pentadecaen-30-yl]ethynyl]silane is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H56N2Si2
assistant