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 N-[4-(3-chloro-4-methylphenyl)but-3-yn-2-yl]-4-prop-2-enoylpiperazine-1-carboxamide using the IUPAC nomenclature.
user
C19H22ClN3O2
assistant