You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2S)-4-[[1-[(2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]amino]-2-[(2-methylpropan-2-yl)oxycarbonylamino]-4-oxobutanoic acid .
user
C18H26N4O10
assistant