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 [(1R,9R,16Z,19S,20S,22R,23S,24S,25S,27R)-27-(4-amino-2-oxopyrimidin-1-yl)-4,6,20,22,24,25-hexahydroxy-23-[(E,3S)-3-hydroxyoct-1-enyl]-4,6,12-trioxo-3,5,7,11,26-pentaoxa-4lambda5,6lambda5-diphosphabicyclo[17.6.2]heptacos-16-en-9-yl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate .
user
C54H83N3O18P2
assistant