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 (2R)-N-(methylcarbamoyl)-2-[4-[(E)-3-phenylprop-2-enyl]piperazine-1,4-diium-1-yl]propanamide using the IUPAC nomenclature.
user
C18H28N4O2+2
assistant