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)-5-benzyl-7-[(2-methylphenyl)methyl]-3,6-dioxo-2,5,8,8a-tetrahydroimidazo[1,2-a]pyrazin-1-yl]-3-benzyl-1-methylurea ?
user
C30H33N5O3
assistant