You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[5-acetamido-4-hydroxy-6-[[4-hydroxy-6-(hydroxymethyl)-2-(methylamino)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d][1,3]oxazol-5-yl]oxy]-2-(hydroxymethyl)oxan-3-yl]oxy-4,5-dihydroxy-6-(methoxymethyl)oxan-3-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H42N4O14
assistant