You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
propyl 4-[[1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]amino]-4-oxobutanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H23N3O8
assistant