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 N-[(2S)-1-[(6aS)-4-(1-aminocyclopentanecarbonyl)-6-oxo-3,3a,5,6a-tetrahydro-2H-pyrrolo[3,2-b]pyrrol-1-yl]-4-methyl-1-oxopentan-2-yl]-4-(dimethylamino)benzamide .
user
C27H39N5O4
assistant