You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (E)-1-[4-(1,3-benzodioxol-5-ylmethyl)piperazin-1-yl]-3-(2-chloroimidazo[1,2-a]pyridin-3-yl)prop-2-en-1-one .
user
C22H21ClN4O3
assistant