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 4-methyl-2-[(2-methylpropan-2-yl)oxycarbonyl-prop-2-enylamino]-1,3-thiazole-5-carboxylic acid ?
user
C13H18N2O4S
assistant