You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-[2-(cyclohexylamino)-2-oxoethyl]-N'-[[(2R)-oxolan-2-yl]methyl]-N-(1,3-thiazol-2-yl)butanediamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H30N4O4S
assistant