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 2-[(2S)-1-[(3aS,6R,6aS)-6-hydroxy-3-oxo-3a,5,6,6a-tetrahydrofuro[3,2-b]pyrrol-4-yl]-4,4-dimethyl-1-oxopentan-2-yl]-4-(4-propan-2-ylpiperazin-1-yl)benzamide .
user
C27H40N4O5
assistant