You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-cyclohexyl-3-[[2-[2-(3,3-difluoropyrrolidin-1-yl)-2-oxoethyl]-6-hydroxy-2,3,3a,5,6,6a-hexahydrofuro[3,2-b]furan-5-yl]methyl]urea into its molecular formula.
user
C20H31F2N3O5
assistant