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 13-[amino(ethoxy)phosphoryl]oxy-3,4,5-trimethoxytricyclo[9.4.0.02,7]pentadeca-1(11),2,4,6,12,14-hexaene ?
user
C20H26NO6P
assistant