You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-(methoxymethylamino)-3-methyl-1-[(6S)-6-[5-(3-methyl-2,2a,7,7a-tetrahydro-1H-cyclobuta[a]inden-6-yl)-3H-indol-2-yl]-5-azaspiro[2.4]heptan-5-yl]butan-1-one;methyl N-[(2S)-3-methyl-1-[(6S)-6-[5-(4-methylphenyl)-1H-imidazol-2-yl]-5-azaspiro[2.4]heptan-5-yl]-1-oxobutan-2-yl]carbamate;phenyl N-[(2S)-1-[(2S)-4,4-dimethyl-2-[5-(3-methyl-2,2a,7,7a-tetrahydro-1H-cyclobuta[a]inden-6-yl)-3H-indol-2-yl]pyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate;phenyl N-[(2S)-1-[(2S)-4,4-dimethyl-2-[4-(4-methylphenyl)-3H-pyrrol-2-yl]pyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C123H149N13O11
assistant