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-[(7-cyclopropylsulfonyl-6,8-dihydro-5H-imidazo[1,2-a]pyrazin-3-yl)methyl]cyclopropanecarboxamide .
user
C14H20N4O3S
assistant