You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1-ethylpyrrolidin-1-ium-1-yl)-N-(4-isocyano-2,6-dimethylphenyl)pentanamide;toluene;yttrium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H38N3OY+
assistant