You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(2R)-1-[[(2R)-2-cyano-3-methylbutan-2-yl]amino]-1-oxopropan-2-yl] 3-methyl-1-benzofuran-2-carboxylate .
user
C19H22N2O4
assistant