You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-[4-[(2R)-butan-2-yl]oxy-3-chloro-5-methoxyphenyl]-N-(4-methyl-3-nitrophenyl)methanimine using the IUPAC nomenclature.
user
C19H21ClN2O4
assistant