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-[1-[4-(2,5-dihydropyridin-2-yl)piperazin-1-yl]sulfonylnon-3-yn-2-yl]-N-hydroxyformamide .
user
C19H30N4O4S
assistant