You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name tert-butyl N-[1-[[N-[2-[3-(furan-2-yl)-1H-1,2,4-triazol-5-yl]ethyl]-N'-methylcarbamimidoyl]amino]-2-methylpropan-2-yl]carbamate ?
user
C19H31N7O3
assistant