You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[(R)-(5,5-dimethyl-2-oxo-1,3,2lambda5-dioxaphosphinan-2-yl)-(1H-indol-3-yl)methyl]-4-ethoxyaniline .
user
C22H27N2O4P
assistant