You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 1-[(5S,8aS)-7-[(2-amino-1,3-benzothiazol-4-yl)methyl]-5-benzyl-3,6-dioxo-2,5,8,8a-tetrahydroimidazo[1,2-a]pyrazin-1-yl]-3-[(4-methoxycyclohexa-1,5-dien-1-yl)methyl]-1-propylurea ?
user
C33H39N7O4S
assistant