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 N-(5-bromopyridin-2-yl)-N-ethyl-2-[[4-(4-methoxyphenyl)-1,2,4-triazol-3-yl]sulfanyl]acetamide .
user
C18H18BrN5O2S
assistant