You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[5-ethoxycarbonyl-6-[[[2-[[2-hydroxy-3-(2-methoxyphenoxy)propyl]amino]-2-methylpropyl]-methylamino]methyl]-2-methyl-4-(3-nitrophenyl)-3,4-dihydropyridin-3-yl]acetic acid .
user
C33H44N4O9
assistant