You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(4,6-dimethoxypyrimidin-2-yl)-1-methyl-1-[[4-(2-oxooxolan-3-yl)-1H-pyrazol-5-yl]sulfonyl]urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H18N6O7S
assistant