You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-methyl-1-[(2S)-2-[5-[3-[2-[(2S)-1-(3-methylbutanoyl)pyrrolidin-2-yl]-1H-imidazol-5-yl]-6H-indolo[1,2-c][1,3]benzoxazin-10-yl]-1H-imidazol-2-yl]pyrrolidin-1-yl]butan-1-one ?
user
C39H45N7O3
assistant