You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (13aR,14R)-2,3,6-trimethoxy-13a-methyl-11,12,13,14-tetrahydro-9H-phenanthro[9,10-f]indolizin-14-ol .
user
C24H27NO4
assistant