You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-N-cyclohexyl-2-[[2-(4-methoxy-N-(4-methyl-3-nitrophenyl)sulfonylanilino)acetyl]-[(3-methoxyphenyl)methyl]amino]-3-phenylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C39H44N4O8S
assistant