You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 16-amino-16-[3-chloropropyl(dimethyl)silyl]-19-ethyl-19-[3-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyloxy]-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2(11),3,5,7,9,15(20)-heptaene-7-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C38H49ClN4O9Si
assistant