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 [6-cyano-2,2-dimethyl-4-(2-oxopyrrolidin-1-yl)-3,4-dihydrochromen-3-yl]oxymethoxy-methylphosphinic acid ?
user
C18H23N2O6P
assistant