You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-chloro-N-[2-[furan-2-ylmethyl-[[(2S)-oxolan-2-yl]methyl]amino]-2-oxoethyl]-N-(2-methylpropyl)propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H29ClN2O4
assistant