You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule tert-butyl 3-[4-methoxy-7-[methyl(thiophen-2-ylsulfonyl)amino]-1,3-benzodioxol-5-yl]prop-2-enoate ?
user
C20H23NO7S2
assistant