You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6-hydroxy-1-(hydroxymethyl)-5-[2-[(4-methoxyphenyl)methylamino]-2-oxoethyl]-1,4a-dimethyl-2,3,4,5,6,7,8,8a-octahydronaphthalen-2-yl] N-propan-2-ylcarbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H42N2O6
assistant